How to Fill Out California Form MC-050 (w/Examples) + FAQs

Yes, you can change lawyers or start representing yourself in a California civil case by filling out Judicial Council Form MC-050, the Substitution of Attorney–Civil form. The form swaps out your old lawyer for a new lawyer, or swaps your lawyer out for you acting as your own attorney, and it must be signed, served, and filed before the change becomes official under California Code of Civil Procedure § 284.

The problem this form solves is real, when your representation changes but the court file still lists the old attorney, every notice, every motion, and every deadline goes to the wrong person, and you can lose your case by default. A 2023 report from the California Courts Self-Help Center noted that more than 4.3 million Californians appear in civil cases each year without a lawyer at some stage, which makes MC-050 one of the most filed substitution forms in the state.

Here is what you will learn in this guide:

• 📝 How to complete every line of MC-050 the right way
• ⚖️ The federal and California rules that control attorney substitution
• 👥 Three real-world named examples showing the form in action
• 🚫 The seven biggest mistakes filers make and how to dodge them
• 💬 Ten FAQs answering the questions most filers ask the clerk

What Form MC-050 Is and Why It Matters

Form MC-050 is a one-page Judicial Council form that lets a party in a California civil case change who speaks for them in court. The form is approved for optional use under California Rules of Court, Rule 1.31, but every superior court in the state accepts it, and most clerks expect it.

The form covers three swaps. You can swap one attorney for another attorney. You can swap an attorney out and have the party represent themselves. You can swap a self-represented party in to be replaced by a new attorney of record. Each swap changes who receives service, who signs pleadings, and who the court holds responsible for deadlines under Code of Civil Procedure § 285.

The consequence of skipping the form is severe. If you fire your lawyer but never file MC-050, the court still treats your old lawyer as your attorney of record, and any settlement offer, hearing notice, or judgment served on that lawyer is legally binding on you. Cases like Sullivan v. Dorsa (2005) 128 Cal.App.4th 947 confirm that an attorney remains counsel of record until a proper substitution or formal withdrawal is filed.

A common misconception is that firing your lawyer in a text message ends the relationship for court purposes. It does not. Termination between you and your lawyer is a contract matter, but the court file only updates when MC-050 (or a court order on a Motion to Be Relieved as Counsel, Form MC-051) is filed and served.

Federal Background First

Federal courts handle attorney changes through local rules, not a single national form, and the Federal Rules of Civil Procedure leave substitution to each district. In the Central District of California, for example, Local Rule 83-2.3 requires a written application and a court order before counsel can substitute in or out.

The federal rule matters because many California civil disputes start in state court, get removed to federal court under 28 U.S.C. § 1441, and then bounce back. When that happens, an MC-050 filed in state court does not carry over to federal court, and a new substitution application must be filed there. The consequence of missing this step is missed federal deadlines, which can mean dismissal under Federal Rule 41(b).

A simple scenario shows the trap. A small business sues a vendor in San Diego Superior Court, files MC-050 to bring in new counsel, and then the vendor removes the case to the Southern District of California. The new lawyer must also file a federal substitution application or risk having the prior firm receive all federal notices.

The common misconception here is that federal courts honor state filings automatically. They do not. Each forum keeps its own record of who represents whom.

Then California State Law

In California state court, Code of Civil Procedure § 284 gives you two ways to change attorneys, consent of both client and attorney filed with the court (that is MC-050), or a court order after a noticed motion (that is MC-051). MC-050 is the faster, cheaper route because it needs no hearing and no judge.

The plain-English meaning is that if everyone agrees, you file the form, serve it, and the change is done. The consequence of choosing the wrong path is wasted time, a contested withdrawal can take 30 to 45 days, while a consensual MC-050 takes minutes.

For example, Maria, a plaintiff in a Los Angeles Superior Court breach-of-contract case, hires new counsel after a fee dispute. Because her old firm signs the form, she avoids the motion path entirely. The misconception is that any attorney change requires a judge’s blessing, it does not when consent is mutual.

Line-by-Line Walkthrough of MC-050

The form has eight numbered boxes plus signature blocks, and each one carries a specific legal consequence. Filling them out in the wrong order or skipping a box is the most common reason clerks reject the filing at intake.

The header block at the top is the caption. You copy the attorney information, the court name, the case caption, and the case number exactly as they appear on the most recent pleading. The consequence of a mismatched caption is rejection by the clerk’s office under California Rules of Court, Rule 2.100.

Caption and Attorney Information

The top-left attorney box asks for the name, State Bar number, firm name, address, phone, fax, email, and attorney for line. If the party filing the substitution is self-represented, the words “In Pro Per” go in the State Bar number space.

The consequence of leaving the State Bar number blank when an attorney is signing is a clerk rejection, because Rule 2.111(1) requires it on every paper. The court name box must match the exact branch, “Superior Court of California, County of Orange, Central Justice Center,” not just “Orange County Superior Court.”

For example, James, an attorney substituting into a San Francisco Superior Court case, writes the branch as “Civic Center Courthouse.” That precision keeps the clerk from kicking the form back. The misconception is that close is good enough, but California clerks reject filings for branch errors every day.

Box 1 – Party Making the Change

Box 1 identifies the party making the substitution by name and party role. You check whether the party is a plaintiff, defendant, cross-complainant, cross-defendant, petitioner, respondent, or “other,” and you write the party’s full legal name.

The consequence of checking the wrong role is confusion in the court record, especially in cases with multiple cross-actions where one person can be both a defendant and a cross-complainant. The form only changes representation for the party named in Box 1, so co-parties keep their existing attorneys.

For example, in a three-defendant construction defect case, Aisha files MC-050 only for her LLC. The other two defendants keep their original counsel because they are separate parties. The misconception is that one form covers a whole “side,” it does not, each party needs its own MC-050.

Box 2 – The New Legal Representative

Box 2 names the new legal representative. You pick one of three options, a new attorney (give name, State Bar number, address, phone), the party representing themselves (give the party’s address and phone), or no new representative because the party is being represented under Code of Civil Procedure § 1004 (rare).

The consequence of picking “self-represented” when you actually have a new lawyer waiting is that all service goes to you at home, not to the lawyer’s office, and important deadlines can slip. Choosing “new attorney” requires that attorney to sign the consent block at the bottom, no signature, no substitution.

For example, Carlos lists his new lawyer’s office address in Box 2 after a referral from the Los Angeles County Bar Association. The new firm now receives every notice, freeing Carlos from monitoring the docket. The misconception is that you can leave Box 2 blank, you cannot, the form is void without a new representative identified.

Box 3 – The Former Legal Representative

Box 3 identifies the former legal representative being replaced. You list the prior attorney’s name, State Bar number, and contact information, or you check that the party was self-represented before the substitution.

The consequence of misidentifying the former attorney is that the wrong lawyer keeps receiving service, and the right lawyer never gets removed from the court’s mailing list. Some firms have multiple attorneys of record, and you must list the attorney who signed the most recent appearance.

For example, Priya substitutes out a solo practitioner who had taken over from a larger firm mid-case. She lists the solo, not the original firm, because the solo was the attorney of record on the last pleading. The misconception is that you list the firm name only, the form asks for the individual attorney’s name and bar number.

Boxes 4 Through 8 – Signatures and Service

Boxes 4 through 8 hold the signatures and the date. Box 4 is the party’s signature consenting to the change. Box 5 is the new attorney’s signature (or the party’s signature again if self-representing). Box 6 is the former attorney’s signature consenting to be relieved.

The consequence of a missing signature is fatal, the form does not work without all three consents under CCP § 284(1). If the former attorney refuses to sign, you cannot use MC-050, you must file a Motion to Be Relieved as Counsel (MC-051, MC-052, MC-053) instead.

For example, when David’s old attorney refuses to sign after a billing fight, David switches paths and files MC-051. The hearing is set 30 days out under Rule 3.1362. The misconception is that you can forge or skip the old attorney’s signature, doing so is a State Bar Rule 8.4 violation and possibly a crime under Penal Code § 470.

Three Real-World Scenarios

Below are three scenarios you will recognize from busy California civil dockets. Each scenario uses a 2-column table to show what the filer does and what happens because of it.

Scenario 1 – Plaintiff Hires New Counsel Mid-Case

Maria sued a contractor in Sacramento Superior Court but lost confidence in her first lawyer after a missed deposition. She found a new firm willing to step in two weeks before trial.

Filer Action	Court Consequence
Maria signs MC-050 Box 4	Her consent is on record under CCP § 284
New firm signs Box 5	New attorney becomes counsel of record
Old firm signs Box 6	Old attorney is removed from service list
File and serve under CCP § 1013	Substitution is effective on all parties

Scenario 2 – Defendant Goes Pro Per After Funds Run Out

Jamal could no longer afford his defense firm in an unlawful detainer case in Alameda County. He decided to represent himself.

Filer Action	Court Consequence
Jamal writes “In Pro Per” in Box 2	He becomes his own attorney of record
Lists his home address for service	All notices now go to him directly
Old attorney signs Box 6	Former counsel is off the case
Serves all parties by mail	Substitution binds opponents on receipt

Scenario 3 – Self-Rep Plaintiff Finally Hires a Lawyer

Linh filed a personal injury case pro per in Santa Clara Superior Court after a car crash, then realized she needed help with expert witnesses.

Filer Action	Court Consequence
Box 3 checked “self-represented”	Court learns Linh had no prior attorney
New lawyer signs Box 5	Counsel of record changes to the firm
Linh signs Box 4	Consent is documented
Files in court and serves opponents	Defense must now serve the new lawyer

Three Named Examples in Action

Below are three named-person examples showing the small choices that change outcomes. Each example highlights a different decision point on the form.

The first example is Elena Rodriguez, a small-business owner in Fresno. Elena ran a bakery sued for slip-and-fall injuries. Her insurance-appointed lawyer was unresponsive, so she hired private counsel and filed MC-050 the same day she signed the new fee agreement. Because she served opposing counsel by overnight mail under CCP § 1013(c), her new attorney appeared at the case management conference five days later without a hitch.

The second example is Marcus Chen, a software engineer in San Jose. Marcus was a defendant in a Department of Fair Employment and Housing lawsuit. He fired his attorney over a fee dispute but did not file MC-050. The court served the next motion on the old lawyer, and Marcus missed an opposition deadline, resulting in terminating sanctions. The fix required a motion under CCP § 473(b), an extra $1,000 in attorney time, and 60 days of delay.

The third example is Rebecca Goldstein, a probate petitioner in Los Angeles Superior Court probate division. Rebecca substituted into a contested trust matter as a pro per successor trustee after her lawyer retired. She used MC-050 even though probate uses Form DE-150 in many counties, and the L.A. probate clerk accepted it because the local rules treat MC-050 as the catchall civil substitution. The lesson, when in doubt, MC-050 is accepted in every civil division, but check local rules first.

Mistakes to Avoid

Most rejections are avoidable. Here are the seven errors that send filers back to the clerk’s counter most often.

• Leaving Box 6 unsigned, which makes the substitution invalid under CCP § 284(1) and causes the clerk to reject the filing at intake.
• Forgetting to serve every other party under CCP § 1013, which means opposing counsel keeps serving the old attorney and you miss critical deadlines.
• Using MC-050 when a trial date is set within the next few weeks without leave of court, courts can refuse late substitutions that delay trial under CCP § 284(2).
• Listing only the law firm in Box 3 instead of the individual attorney of record, which leaves the wrong person on the service list.
• Writing the wrong case number, even a single digit error, causes the clerk to reject the filing under Rule 2.100.
• Forgetting to attach a Proof of Service (POS-030 or POS-040) to the substitution, which makes the filing incomplete.
• Filing MC-050 in a criminal case, MC-050 is civil only, and criminal substitutions require a court order under Penal Code § 1018.

Service and Filing Requirements

After everyone signs, you must serve a copy on every other party who has appeared in the case. Service is governed by CCP § 1013 and the California Rules of Court 2.260 for electronic service.

The plain-English meaning is that you must put a copy in the mail (or fax, or email if e-service is in place) to every lawyer and self-represented party. The consequence of not serving is that the substitution is not effective against unserved parties under CCP § 285, and they may keep serving your old attorney lawfully.

For example, Kenji files MC-050 but forgets to mail a copy to the cross-defendant’s lawyer. When the cross-defendant later serves Kenji’s old attorney, the court finds the service valid because no notice of substitution reached the cross-defendant. The misconception is that filing alone updates everyone, it does not, service is separate from filing.

Filing in Person, By Mail, or Electronically

Most counties now require mandatory electronic filing for represented parties under Code of Civil Procedure § 1010.6 and local rules in Los Angeles, Orange County, San Diego, and San Francisco. You upload MC-050 as a PDF through the court’s approved e-filing service provider.

The consequence of filing on paper when e-filing is mandatory is rejection of the document. Self-represented parties may still file at the clerk’s window in most counties, but check the local website first.

The misconception is that MC-050 carries a filing fee, it does not. The Statewide Civil Fee Schedule lists no fee for a substitution of attorney.

Local Court Nuances

Los Angeles County’s General Order Re Mandatory Electronic Filing requires color signatures or “/s/” e-signatures, and the clerk will reject black-and-white scans without the proper signature block.

San Francisco Superior Court requires that the e-filed PDF be text-searchable, image-only PDFs are rejected under Local Rule 2.10. Orange County’s clerk requires a separate proposed order only if the substitution involves a guardian ad litem under Rule 3.1362.

San Diego allows self-represented parties to e-file through the One Legal or File & ServeXpress systems for free for fee-waived filers. The misconception is that all counties are the same, they are not, and the first thing you do should be a quick check of the county’s local rules page.

Do’s and Don’ts

Below are five do’s and five don’ts that experienced civil clerks repeat to filers all day.

Do’s

• Do download the current MC-050 from the Judicial Council forms library because older versions are sometimes rejected.
• Do confirm every signature is on the form before you file, because rejections cost days you may not have.
• Do serve every other party the same day you file, which closes the service-filing gap.
• Do save the file-stamped copy as your proof, because clerks lose paper copies more often than filers think.
• Do calendar the new attorney’s address into every future caption, because mismatched captions trigger more rejections.

Don’ts

• Don’t file MC-050 if the trial is imminent, the court can deny the substitution under CCP § 284(2) to prevent delay.
• Don’t forget the Proof of Service, because the filing is incomplete without it.
• Don’t use MC-050 in family law cases when Form FL-958 applies, because the family division rejects the wrong form.
• Don’t list a P.O. Box for a pro per party without also including a physical address, because some clerks require both.
• Don’t sign for someone else, signature forgery violates Business and Professions Code § 6068 and may be criminal.

Pros and Cons of Using MC-050

Below are five pros and five cons of using the form instead of a motion to be relieved.

Pros

• No filing fee, the form is free under the statewide fee schedule.
• No hearing required, the substitution is effective on filing and service.
• Fast turnaround, often same-day if everyone signs.
• Simple one-page format that any party can read.
• Recognized in every California civil division statewide.

Cons

• Requires the old attorney’s cooperation, which is not always available.
• Late-stage substitutions can be denied if they would delay trial.
• Does not work in criminal cases or some specialized proceedings.
• Provides no mechanism to recover unpaid fees from the client, the attorney must sue separately.
• Errors in any of the eight boxes trigger clerk rejections that waste days.

Court Rulings to Remember

A few California decisions shape how MC-050 is read in practice. The case of Vann v. Shilleh (1975) 54 Cal.App.3d 192 confirms that an attorney remains counsel of record until a proper substitution or court order is filed, even after the client says “you’re fired.”

In Reynolds v. Reynolds (1969) 21 Cal.App.3d 73, the court emphasized that service on the attorney of record binds the party until the substitution is filed and served. And in Lempert v. Superior Court (2003) 112 Cal.App.4th 1161, the court reaffirmed that an attorney’s authority continues for all purposes until a substitution is properly executed.

These rulings explain why MC-050 is not just paperwork, it is the only way to make the change legally effective in the eyes of the court.

Key Entities to Know

The form sits at the crossroads of several institutions. The Judicial Council of California drafts and updates the form. The State Bar of California regulates the attorneys signing it. Each county’s Superior Court Clerk’s Office reviews and files it.

The California Self-Help Centers help pro per filers complete it. The State Bar’s Mandatory Fee Arbitration program handles the fee disputes that often cause substitutions in the first place. Each entity plays a different role, but all of them touch the same one-page form.

Frequently Asked Questions

Do I need a court order to use MC-050?

No. A court order is only needed when the old attorney refuses to sign or when trial is imminent, in which case you must file a Motion to Be Relieved as Counsel using Form MC-051 instead.

Is there a filing fee for MC-050?

No. The Statewide Civil Fee Schedule lists no fee for a substitution of attorney, and clerks accept the form without payment in every California county.

Can I use MC-050 in family law cases?

No. Family law cases use Form FL-958 for substitutions, and most family divisions reject MC-050 as the wrong form for those matters.

Can I file MC-050 right before trial?

No. Under CCP § 284(2), late substitutions that would delay trial usually require court permission, and judges deny them when the timing prejudices the other side.

Do I have to serve the form on the other parties?

Yes. Service on every appearing party is required by CCP § 1013, and the substitution is not effective against any party who is not served.

Can a corporation represent itself with MC-050?

No. Corporations must appear through licensed counsel under Merco Construction Engineers v. Municipal Court (1978) 21 Cal.3d 724, so a corporation cannot list “In Pro Per” in Box 2.

Can I e-file MC-050?

Yes. Every California superior court that mandates e-filing accepts MC-050 through approved electronic filing service providers under CCP § 1010.6.

Does MC-050 work in federal court?

No. Federal courts follow their own local rules, such as Central District Local Rule 83-2.3, which require a separate substitution application and often a court order.

Can my old attorney refuse to sign?

Yes. If the old attorney refuses, you must use the motion path with Form MC-051, and the court will set a hearing under Rule 3.1362.

Will MC-050 stop my old attorney’s lien for unpaid fees?

No. An attorney’s lien for unpaid fees survives the substitution, and the old lawyer can still pursue collection or move to enforce a charging lien under Fletcher v. Davis (2004) 33 Cal.4th 61.

Can I list multiple new attorneys in Box 2?

Yes. You can list co-counsel by attaching a separate sheet, but each new attorney must sign Box 5 to consent to the appearance under CCP § 284.

Do I need a notary for MC-050?

No. The form requires only signatures, not notarization, because CCP § 2015.5 allows a declaration under penalty of perjury in lieu of a notarized acknowledgment.