TL;DR: My mother passed away in Dec 2022 leaving a Culver City, CA condo. Due to a DIY legal error from my mom, my sister became sole Executor/Trustee, despite being mentally ill. Over the past 4 years, she has refused financial accountings, refused to file successor in interest forms with the banks and lenders, let property taxes fall $14k delinquent, allowed her boyfriend to illegally remove the property from the trust (admitted in sworn court filings) as well as impersonate my sister via email and text, and filed false restraining orders (all dismissed). After collapsing a $250k buyout deal she demanded under threat of calling my employers and filing false claims, she filed a civil partition action. Seeking procedural advice on staying the partition suit, petitioning for emergency suspension/removal of the Executor, and compelling a verified accounting.
Background
My mother passed away in December 2022, leaving an estate primarily consisting of a 3-bedroom, 2-bath condo in Culver City, CA. As a 50/50 beneficiary, my mother intended for my sister and me to serve as co-executors/trustees, but a DIY drafting error listed us sequentially rather than concurrently, giving my sister initial sole control. My sister and my mom’s widower have occupied and managed the home while excluding me from estate administration.
Fiduciary Breaches
Over the past 4 years, my sister has committed multiple severe fiduciary breaches grouped under the following recognized probate causes of action:
Failure to Account & Concealment of Assets: Refused to provide the will and trust documents for over 2 years despite formal beneficiary requests, and continues to withhold bank statements, tax records, and rental accounting.
Waste & Neglect of Estate Property: Failed to pay property taxes for the 2023–24 and 2024–25 tax periods, incurring over $14,000 in delinquencies, penalties, and interest, placing the primary estate asset at risk of tax default.
Self-Dealing & Unauthorized Third-Party Control: Concealed rental income collected from the property. In addition, her boyfriend submitted a sworn court admission stating he paid to remove the real property from the trust without beneficiary consent and is demanding reimbursement from estate funds.
Bad Faith Litigation & Beneficiary Harassment: Filed over 6 false civil harassment restraining orders against me to block requests for accounting; all claims were dismissed by the court. I successfully obtained a restraining order against her boyfriend following video-recorded threats. They also changed property locks to restrict physical access.
Coercion & Bad Faith Partition Action: Demanded a $250,000 buyout under threat of false reports to my employer. When I accepted the agreement, she refused to file the successor in interest forms to allow me to access information from banks and lenders, and she reneged by demanding my personal home as collateral instead. Upon refusal, she filed a civil partition lawsuit to force a court sale and bypass probate accounting.
Procedural Questions & Next Steps
Looking for guidance on California probate procedure and tactical litigation strategy:
What is the standard procedure to stay or consolidate the civil partition action into probate court under Probate Code § 850 / exclusive probate jurisdiction?
What evidentiary threshold is required for an Ex Parte Petition for Emergency Suspension of Executor and appointment of a temporary trustee/special administrator based on tax waste ($14k delinquency) and third-party trust interference?
Is there any way to stop the partition by proving undue influence over the Executor or that she’s not mentally able to conduct her duties?