How to Get a Conservatorship in California: Step-by-Step

Written and reviewed by Powellsss Editorial Team.

The call often comes from a bank teller or a worried neighbor: your father has been writing checks to a stranger, or your aunt’s power was shut off because she forgot to pay the bill for four months. When an adult you love can no longer manage daily care or finances—and never signed a power of attorney while they still could—a California probate conservatorship may be the only lawful way to step in. The process runs through the Superior Court’s probate division, and it demands paperwork, strict notice rules, a court investigation, and real proof. Here’s how each stage works, from choosing the right type of conservatorship to meeting your obligations after appointment.

Understanding California Conservatorships and Legal Standards

To get a probate conservatorship in California, an eligible petitioner files Form GC-310 in the Superior Court of the county where the proposed conservatee resides, completes formal notice and personal citation service, cooperates with a court investigator’s review, and proves by clear and convincing evidence at a hearing that the adult cannot meet personal-care or financial needs.

A conservatorship is a court-supervised arrangement in which a judge appoints a responsible adult or professional fiduciary to make decisions for someone who can’t manage alone. According to Probate Code §1801, the court may appoint a conservator of the person when an adult is unable to provide properly for physical health, food, clothing, or shelter, and a conservator of the estate when the person is substantially unable to manage financial resources or resist fraud or undue influence. Occasional negligence or poor judgment isn’t enough; the inability must be substantial and documented.

The evidentiary bar is deliberately high. Because appointment removes significant legal rights, the petitioner must prove the case by clear and convincing evidence—a heavier burden than the ordinary civil standard that governs most lawsuits.

Who can file? Probate Code §1820 allows the proposed conservatee, a spouse or domestic partner, a relative, an interested public entity or officer, or any other interested person or friend to petition; creditors face statutory limits. Filing eligibility doesn’t guarantee appointment, though. The court independently assesses the proposed conservator’s suitability, and if the adult can still form an intelligent preference, the judge may consider their own nomination under §1810.

Probate Conservatorship vs. LPS Mental-Health Proceedings

Families often confuse two very different proceedings. A probate conservatorship is a private case for adults impaired by illness, injury, or developmental disability. An LPS conservatorship under Welfare and Institutions Code §5350 is a mental-health proceeding for people found gravely disabled by a mental disorder, and private family members cannot start one—only designated county professionals can. If serious mental illness is the core issue, the probate petition described here is the wrong vehicle.

Choosing the Right Conservatorship: Person, Estate, and Scope

Before touching a form, work through four questions.

Does the adult need help with personal care? Inability to manage health, food, clothing, or shelter points to a conservatorship of the person.
Do they need help with money? Substantial inability to manage assets, or vulnerability to fraud and undue influence, points to a conservatorship of the estate. Many families need both, and a single petition can request combined authority.
Does the adult have a developmental disability? If so, a limited conservatorship under Probate Code §2351.5 is the tailored path. The court grants only the specific powers the person actually needs, drawn from a statutory list that includes residence, access to records, contracts, medical consent, social or sexual contacts, marriage or domestic-partnership consent, and education. Nothing more is taken away.
Is there an emergency right now? A temporary conservatorship under Probate Code §2250 provides interim protection when good cause exists while the general petition is pending. It’s a bridge to the full hearing, not a shortcut around it—temporary relief is never automatic.

The general conservatorship is the standard framework for adults who meet the §1801 standard, most often older adults with dementia, brain injury, or serious illness. One caution on medical authority: a conservator of the person doesn’t automatically hold every health-care power. Ordinary personal-care authority, exclusive medical consent under §2355, and special dementia-related powers involving secure perimeters or psychotropic medication under §2356.5 are separate questions the court addresses individually.

Four-Point Decision Guide and Authority Comparison Table

Type	Legal threshold	Scope of powers	Typical use case
General	Clear and convincing evidence of inability (§1801)	Person, estate, or both, as ordered	Dementia, brain injury, serious illness
Limited	Developmental disability; only necessary powers granted (§2351.5)	Selected powers from the statutory list	Adults with developmental disabilities
Temporary	Good cause for interim protection (§2250)	Time-limited authority pending the final hearing	Urgent risk while the general petition proceeds

Use the table to frame your petition: the type you choose determines the forms, the evidence, and the notice obligations that follow.

Evaluating Least Restrictive Alternatives Before Filing

California law doesn’t treat conservatorship as a first resort. Probate Code §1800.3 establishes a clear preference for the least restrictive alternative, and your petition must explain why lesser options are unavailable, inadequate, or already tried. Before filing, work through this worksheet honestly.

Start with supported decision-making: can the adult still make their own choices with trusted help from family or friends? If so, their autonomy stays intact and no court case is needed. Next, check for a durable power of attorney. A properly executed POA continues despite later incapacity under Probate Code §4124—but it requires capacity at signing. If your loved one already lacks capacity, that door has closed. Then look for an advance health care directive, which appoints a health-care agent and can eliminate the need for a conservatorship of the person altogether. Finally, consider narrower tools: representative payees for benefits, trusts, and joint accounts can solve isolated financial problems without court supervision.

The difference between conservatorship and power of attorney is fundamental. A POA is granted voluntarily by a capable adult who chooses their agent; a conservatorship is imposed by a judge after proof of incapacity, with ongoing court oversight. If a valid alternative exists, the court expects you to use it. If none works, document exactly why—your confidential supplemental filing will need that explanation, and the court investigator will ask about it. Skipping this analysis is one of the fastest ways to lose credibility with the court.

California Conservatorship Forms and Required Documentation

The paperwork is where petitions succeed or stall. Each form serves a distinct function, and a missing one can continue your hearing by weeks.

The foundational filing is GC-310, the Petition for Appointment of Probate Conservator. It identifies the proposed conservatee, the authority requested, the factual basis, and the proposed conservator. Probate Code §1821 requires the petition to address alternatives and list interested parties, so a bare doctor’s letter attached to a thin petition won’t carry the case.

Two confidential forms ride along with the petition. Pursuant to California Rules of Court, rule 7.1050, each petitioner other than a bank or trust company submits GC-312, the Confidential Supplemental Information form—this is where you explain in detail why the conservatorship is needed and why alternatives fail. The proposed conservator completes GC-314, the Confidential Conservatorship Screening Form, disclosing background the court uses to assess suitability. Both are confidential, which encourages candor.

Service uses GC-320, the Citation for Conservatorship—the formal notice personally delivered to the proposed conservatee, spelling out the hearing date and their rights. Medical evidence comes through GC-335 or GC-335A, confidential capacity assessments completed by an authorized medical or religious-healing practitioner. These aren’t identical in every case: the right medical form depends on the powers you’re requesting, and some cases need more than one.

If the judge grants the petition, GC-340 is the signed order defining the appointment, and GC-350—the Letters of Conservatorship—is the document that actually proves your authority to banks, physicians, and agencies. Letters issue only after you complete qualification steps, including any required bond.

Judicial Council forms are revised periodically, with updates taking effect in 2025 and 2026, so pull current versions from the California Courts forms index rather than reusing an old download.

Categorized Forms-by-Purpose Reference Matrix

Initial filing: GC-310
Confidential background: GC-312, GC-314
Service and citation: GC-320
Medical evidence: GC-335, GC-335A
Order and issuance: GC-340, GC-350
Post-appointment: GC-355 (care plan), GC-040 (inventory)

Confirm revision dates against the forms index before filing; counties reject outdated versions.

The California Conservatorship Process: Filing to Court Hearing

With the right type chosen and forms assembled, the court phase begins. Here’s the workflow from filing to hearing.

Confirm venue. You must generally file in the county where the proposed conservatee resides (Probate Code §2201), unless another county better serves their interests. Each county’s probate department runs its own local forms, e-filing rules, and hearing calendars, so check the local court’s website first—the San Mateo Superior Court conservatorship guide shows how much county-level detail can vary.
File the petition package. Submit GC-310 with the confidential forms and any local attachments, and pay the filing fee or request a waiver.
Serve the citation personally. Probate Code §1824 requires the citation and petition to be personally served on the proposed conservatee at least 15 days before the hearing. You can’t do this yourself; use a non-party adult, a registered process server, or the sheriff.
Notify relatives and agencies. Probate Code §1822 requires notice and a copy of the petition to specified relatives at least 15 days before the hearing. When a developmental disability is involved, the regional center generally receives at least 30 days’ notice.
Cooperate with the court investigator. As mandated by Probate Code §1826, the investigator interviews the proposed conservatee and others, examines alternatives, and advises the adult of their rights—to oppose the petition, attend the hearing, have counsel, and demand a jury trial. The investigator’s confidential report carries real weight with the judge.
Plan for the conservatee’s attendance. Probate Code §1825 generally requires the proposed conservatee to be produced at the hearing unless a statutory exception applies, such as documented medical inability.
Attend the hearing. The judge weighs the petition, the investigator’s report, and any objections. If the petition is granted, the court signs the order and, after you qualify, the clerk issues letters.

For a practitioner’s walkthrough of getting a conservatorship in California from filing through post-appointment duties, that guide pairs well with the statutory steps above.

On timing, be skeptical of anyone promising a 60- or 90-day result. California Courts’ limited-conservatorship guidance indicates at least a month simply to obtain a court date, and uncontested cases commonly take several months; contested matters take longer. Local calendars, investigator workloads, and service problems control the real schedule.

Notice, Personal Service, and Hearing Attendance Rules

Three rules deserve emphasis. First, the proposed conservatee receives personal service of the citation at least 15 days ahead—distinct from the mailed notice relatives get, and confusing the two is a common reason hearings are continued. Second, attendance is mandatory absent a recognized exception. Third, the adult keeps meaningful rights throughout: independent counsel, the right to object, and the right to a jury trial on the petition.

Conservatorship Costs, Court Fees, and Fee Waivers

Budget for more than the filing fee. The 2026 Statewide Civil Fee Schedule lists $435 for an initial petition for appointment of a conservator of the person, estate, or both, and $60 for a first or subsequent petition for temporary letters. Those are statewide figures, but they’re only the starting point.

Counties may assess separate court investigator fees, which can be substantial. Estate conservators typically must post a surety bond sized to the estate, with annual premiums. You’ll need certified copies of your letters for banks and agencies, each carrying a clerk’s fee. And attorney and professional fees vary widely by county and complexity—an uncontested family petition costs far less than a contested matter with competing petitioners. Because investigator fees and local charges differ by county, confirm the full expected total with the probate clerk before filing.

If cost is a barrier, California’s fee waiver process can cover filing, investigation, and other court fees. The court evaluates the proposed conservatee’s financial circumstances, so gather their income and asset information before applying. A waiver doesn’t cover private attorney fees, but it removes the court-side costs that stop many families from filing at all.

Post-Appointment Fiduciary Duties, Deadlines, and Supervision

Appointment is the beginning, not the end. Your compliance calendar starts the day the order is signed.

Qualify for letters. Complete any bond requirement so the clerk can issue GC-350, your working proof of authority.
File the care plan. As required by Probate Code §2351.2, conservators of the person generally must file the confidential care plan (GC-355) within 120 calendar days of appointment and update it before any continuation or termination hearing. Some limited conservatorships are excepted, so check the form instructions for your case.
File the inventory. Estate conservators must prepare and file the Inventory and Appraisal (GC-040) within 90 days of appointment, listing every asset the conservatorship controls.
Account to the court. Financial accountings are generally due one year after appointment (Probate Code §2620) and at least every two years thereafter, unless the court orders more frequent reporting.
Follow residence-change rules. Rule 7.1063 generally requires advance notice of an intended move, a filing after the move, and prior court approval before relocating the conservatee out of state.
Participate in reviews. The court investigator periodically reviews every conservatorship (Probate Code §1850); respond promptly and keep records organized.

Missing these deadlines can bring sanctions, suspension, or removal. Calendar every date the day your letters issue, and treat the investigator as a partner rather than an adversary. If circumstances change—the conservatee improves, or the arrangement no longer fits—either side can ask the court to modify or terminate the conservatorship.

Conclusion: Navigating California Probate Conservatorships Successfully

Three takeaways matter most. First, prove necessity: the clear-and-convincing standard and the least-restrictive-alternative mandate mean thin petitions fail. Second, respect the conservatee’s rights—notice, counsel, and participation aren’t formalities. Third, treat appointment as the start of ongoing supervision, with firm deadlines for care plans, inventories, and accountings. Because local Superior Court probate rules, clerk instructions, and investigator procedures vary by county, verify requirements with your county’s probate department before filing. For contested matters or complex estates, guidance from experienced counsel such as Barr & Young Attorneys, a Northern California firm handling conservatorships and fiduciary disputes, can prevent costly missteps.

This article provides general legal information, not legal advice. Laws and procedures vary by jurisdiction; consult a licensed attorney about your specific situation.