Quick Answer: Mono County probate, conservatorship, and estate cases are handled at two courthouses, the Mammoth Lakes Courthouse (100 Thompson Way) and the Bridgeport Courthouse (278 Main Street), both reachable at (760) 924-5444. There’s no standalone probate division, filings go through the Civil Clerk’s Office, and conservatorships are reviewed by the court at 6 months, 1 year, and then annually under Probate Code Section 1850.
Mono County is one of California’s smallest and most rural counties, stretching along the eastern Sierra from Mammoth Lakes north to Bridgeport. Its court system reflects that: two small courthouses, no dedicated probate courtroom, and a Civil Clerk’s Office that handles decedent’s estates, trusts, guardianships, and conservatorships alongside general civil matters.
Mono County Probate Court Locations & Contact Info
Both branches share the same phone number and process probate-related filings through the Civil Clerk’s Office. Verified directly on mono.courts.ca.gov:
| Branch | Address | Phone | Hours |
|---|---|---|---|
| Mammoth Lakes Courthouse (South County) | 100 Thompson Way, Mammoth Lakes, CA 93546 | (760) 924-5444 | Mon-Thu 8:30am-4pm, Fri 8:30am-12pm |
| Bridgeport Courthouse (North County) | 278 Main Street, Bridgeport, CA 93517 | (760) 924-5444 | Limited satellite hours, call ahead to confirm clerk availability |
Phone lines for both branches are staffed Monday through Friday, 9:00am to 12:00pm, and the shared fax number is (760) 924-5419. Mail for both branches is currently processed through the Mammoth Lakes location.
How Probate and Conservatorship Cases Are Filed
Mono County doesn’t have a separate probate division, a pattern also seen in a handful of California’s smaller counties. Petitions for conservatorships, guardianships, decedent’s estates, and trusts are filed with the Civil Clerk’s Office, either in person at the Mammoth Lakes courthouse or by mail. Questions about filing go to civil@mono.courts.ca.gov or the main line during the 9am-12pm phone window.
Judicial Council forms for probate, guardianships, and conservatorships are available through the statewide forms portal rather than a county-specific probate forms page, which is typical for smaller courts that don’t maintain a dedicated probate self-help section.
How the Court Reviews a Conservatorship
Once a conservatorship is granted in Mono County, the court doesn’t just close the file. Under Probate Code Section 1850, a court investigator visits the conservatee and reports back to the court on a set schedule:
- Six months after the initial appointment
- One year after the initial appointment
- Annually after that
At each review, the investigator checks on the conservatee’s placement, quality of care, and finances, and reports whether the conservator is acting in the conservatee’s best interest. If the investigator’s report raises concerns, the court can order a hearing or require the conservator to submit a formal accounting. Filing a petition also triggers an initial investigation, typically completed within two to four weeks, before the first hearing date.
Filing Fees and Fee Waivers
Mono County charges filing fees according to the statewide court fee schedule, the same $435 base probate filing fee (Government Code Section 70650) used across California, plus additional fees for investigation services in conservatorship cases. If those costs would create a hardship, petitioners can apply for a fee waiver using Judicial Council Form FW-001, with FW-002 required for additional fee categories beyond the initial filing.
Waiting on an Inheritance During Mono County Probate
Rural counties like Mono don’t move probate cases any faster than larger ones, and a case involving out-of-state heirs or a vacation property near Mammoth Lakes can take just as long to resolve. If you’re named in a will or trust and need funds before the estate settles, ProbateLend’s Mono County probate advance lets you access a portion of your expected inheritance now rather than waiting out the full process. See how a probate cash advance works for more on eligibility and the application process.
Frequently Asked Questions
Does Mono County have a dedicated probate courtroom?
No. Probate, conservatorship, guardianship, and trust matters are handled by the Civil Clerk’s Office at the Mammoth Lakes courthouse rather than a separate probate division.
Can I file probate documents at the Bridgeport courthouse?
Bridgeport operates on limited satellite hours, so it’s best to call (760) 924-5444 ahead of time to confirm the clerk’s office is staffed before making the trip, rather than filing in person at Mammoth Lakes.
How often does the court check in on a conservatorship after it’s granted?
An investigator visits at 6 months, 1 year, and then every year after that under Probate Code Section 1850, reporting back to the court on the conservatee’s care and finances each time.
What happens if I can’t afford the conservatorship investigation fees?
You can request a fee waiver using Judicial Council Form FW-001 (and FW-002 for additional fees), which the court reviews based on financial hardship.
Does requesting a probate cash advance affect a pending Mono County case?
No. A probate cash advance is a transaction between you and the funding provider, secured by your expected inheritance, and it doesn’t involve the court or change the underlying probate timeline.
If you’re an heir or beneficiary of a Mono County estate and need funds before probate closes, ProbateLend can help you access your inheritance sooner.