Petition to Determine Invalidity of Trust or Amendment

In California, if a beneficiary of a trust believes that the circumstances around the execution or signing of a trust or amendment were unusual, a beneficiary or heir at law can petition the court to determine that the trust or amendment is invalid.

What are the grounds for the court to invalidate a trust or amendment?

If you would like to know how to invalidate a trust amendment, you must first be able to determine if there are sufficient grounds to do so.  The grounds are factual basis or reasons for the court to set aside the trust or amendment.   Some of the grounds are lack of capacity, undue influence, forgery or fraud, among others.   The trust instrument can contain a no contest clause which bears on what is considered to be a contest if you file such a petition to invalidate the trust or amendment and you lose.  This is a risk by the person who files such a petition which should be evaluated before filing.

How can a trust litigation attorney help in Trust Petitions?

A trust attorney can start the negotiation for settlement of a case long before filing any petition.  However, once a Trustee’s Notification (called Probate Code 16061.7 Notice) has been given, the time period for filing a trust contest is very limited.   If you receive such a notice from a trustee, you must immediately act to have the trust reviewed with a competent trust litigation attorney.

Why hire Sirkin Law Group as your trust litigation lawyers in Los Angeles?

We have over 25 years of experience in Los Angeles Probate and Trust Litigation matters. Our trust litigation attorney is Board Certified as a Specialist in Probate,Trust Law and Estate planning.   Our firms does not practice other types of law.   We are dedicated to trusts, estates and conservatorship and appear in our local Los Angeles Probate Court several times per week.  Mina Sirkin has been a legal expert to many media outlets such as CNN, MSNBC, Inside Edition and others regarding trusts and celebrity inheritance disputes.   We keep up with all California and local probate and trust laws in Los Angeles .  We have recovered millions of dollars in inheritances from trusts and are well-versed in financial elder abuse cases.   Call Mina Sirkin, 818-340-4479 in Los Angeles for a complimentary Trust Litigation consultation .

Trust Litigation

Trust Litigation Los Angeles  

Los Angeles, Ca:   Mina N. Sirkin is a Los Angeles, California Board Certified Specialist trust litigation attorney in the areas of Estate Planning, Probate and Trust Law by the Board of Legal Specialization of the State Bar of California who practices trust estate litigation. Our main office serves all of Los Angeles County, and our attorneys can help you and your family with trust litigation and mediation legal representation in Los Angeles.


Legal services:


  •     Probate Litigation
  •     Trust Litigation
  •     Estate Litigation Los Angeles Attorneys
  •     Probate Code 850 Actions: Litigating Recovery of Trust Assets
  •     Trust Contests
  •     Litigation Involving Validity or Invalidity of a Trust or Amendment
  •     Elder Law Litigation & Financial Elder Abuse
  •     Trust Estate Litigation Los Angeles
  •     Will Contests
  •     Disputes about Appointment of an Executor or Trustee
  •     Undue Influence and Trusts Litigation Attorney 

Ms. Sirkin is admitted to practice in the following Courts:

1992-Admitted to Practice in All California Courts

1992-Federal Court- Central District of California

1992-Federal Court, 9th Circuit Court of Appeals

Bar Memberships:


State Bar of California, Trust & Estates Section

Los Angeles County Bar Association, Trusts & Estates Section

Beverly Hills Bar Association- Trust & Estates Section

San Fernando Valley Bar Association – Trust and Estate Section

American Bar Association

National Academy of Elder Law Attorneys (NAELA)


Probate Attorneys

University of California, Los Angeles, B.A. 1988

Whittier School of Law, J.D. 1991

Golden Gate University School of Law, LLM, (Taxation), 1998

Television Appearances:

Ms. Sirkin served as the Legal Expert and Commentator: CBS 2/ KCAL-9 TV. Prime-time News covering the Anna Nicole Smith Case.

CNN Legal Expert on the Estate of Michael Jackson. re the Estate of Bobbie Brown.

Recently Quoted In:

CNN and Fortune Small Business: Jan. 10, 2008, What to do before you launch.

NY Times: March 18, 2008, Breaking the Silence

Health Care Risk Management: August 2008: Know what to do when faced with suit. February 2009. What to do if your retail credit card issuer goes bankrupt.

MSNBC: March 9, 2009, When a celebrity endorsement sours.

Probate Attorneys Los Angeles Trust Litigation Attorney

MSN Money: March 2009, The Making of Ivanka Trump.

Probate Attorney Los Angeles California, October 2009, 9 Key Estate Planning Tools

Media Expert, 2009-2015


NPR News



Trust Litigation Attorney Los Angeles

Awards and Designations:

Winner of the American Jurisprudence Award in Constitutional Law in 1990.

Winner of the California Tax Bar Scholarship in 1997.

Super Lawyers 2010.

Certification and Specialization:

Ms. Sirkin is a Certified Specialist attorney in the areas of Estate Planning, Probate and Trust Law by the State Bar of California Board of Legal Specialization. Probate Attorneys.

Publications and Teaching Experience:

Los Angeles County Bar Association, Trusts & Estates Section News, Internet Sites for Estate Planners.


Instructor, Los Angeles County Bar Association: DPCDA and Conservatorships


Instructor and Co-Author, Probate Start to Finish (2006), National Business Institute. Probate Lawyers


Co-Instructor, Estate & Trust Education Resource: (2007) “Prep Course for the Certified Specialist Exam in Estate Planning, Trust and Probate,” Los Angeles, CA and San Jose, CA.


Published Case: Student v. Los Angeles Unified School District (2007) OAH: N 2006120552


Featured Speaker, What law schools don’t teach you about the “Science of Marketing.” (2008). Peter Port Productions.


Speaker, Estate, Financial and Health Care Planning for Elder Clients (Nov. 2008). National Business Institute.


Co-Author, Estate and Tax Planning: Qualified Retirement Plans and IRAs (Jan. 2009), National Business Institute.


Instructor, Elder Abuse Litigation, LAPA 35th Annual Meeting (2011)


Instructor, Elder Abuse (Advanced Probate)

LAPA 38th Annual Meeting (2014)


Instructor, Lorman, Elder Abuse Litigation (2014)

Other Activities:

·         PVP Panel Member, Los Angeles County

·         Settlement Officer Panel Member, Los Angeles Superior Court

Evan R. Sirkin is an expert attorney in Estate Planning, Probate and Trust Law in California.

Estate Planning Attorney San Fernando Valley

Mr. Sirkin is admitted to practice in the following Courts:

1990-Admitted to Practice in All California Courts

San Fernando Valley Woodland Hills Probate Trust Litigation Lawyers Attorneys

Bar Memberships:

·         State Bar of California, Trust & Estates Section

·         Los Angeles County Bar Association, Trusts & Estates Section

·         San Fernando Valley Bar Association


·         University of California, Los Angeles, B.A. 1985

·         Loyola Law School, J.D. 1988

Legal services include:

·         Estate Planning

·         Living Trust Formation and Administration

·         Conservatorship

·         Special Needs Trust Creation and Planning

·         Guardianship

·         Probate

·         Entity Formation, including LLCs, Corporations, & Partnerships

Marilyn Mamann (1946-2010)



Main Office:

21550 Oxnard Street, Third Floor
Woodland Hills, CA 91367
Phone:  818. 340. 4479
Fax:      818. 340. 7952

West Los Angeles
11400 Olympic Blvd., Suite 200
Los Angeles, CA 90064
Tel: 800-300-9977

19800 MacArthur Blvd., Suite 500
Irvine, CA 92715
Tel: 800-300-9977

LAX area
6601 Center Drive West, Suite 500
Los Angeles, CA 90045
Tel: 800-300-9977

Downtown Los Angeles
445 N. Figueroa St., Suite 2600
Los Angeles, CA 90071
Tel: 800-300-9977

450 North Brand Blvd., Suite 600
Glendale, CA 91203
Tel: 800-300-9977

225 South Lake Ave., Suite 300
Pasadena, CA 91101
Tel: 800-300-9977

Litigating a Trust Case? If you would like to get more information regarding Trust litigation in Los Angeles, California, click here.