Wills and trusts “construction” is probate court litigation focused on interpreting unclear, inconsistent, or disputed language in a will or trust. These cases are not necessarily about whether the document is valid (a contest). Instead, the dispute is typically about what the document means and how it should be carried out—who inherits, when distributions occur, what a trustee may pay for, whether a clause is ambiguous, or how to handle an omitted asset or beneficiary. At Westlake Law Group, we represent trustees, executors, beneficiaries, and heirs throughout Westlake Village, Thousand Oaks, Calabasas, Ventura County, and Los Angeles County in will and trust construction proceedings, petitions for instructions, and related probate litigation.
Construction disputes often arise in high-value estates and long-term trusts where ambiguous drafting, multiple amendments, or changed family circumstances create conflicting interpretations. Early action matters because distributions may be delayed, assets may be sold or moved, and statutory notice issues can affect options.
To discuss a will or trust construction dispute, call (818) 444-2022 to schedule a confidential consultation.
What “Construction” Means in California Will and Trust Litigation
Construction is the legal process of determining the meaning of a written instrument and applying it to the facts. In probate court, construction disputes commonly involve:
- Ambiguous beneficiary designations (for example, “my children” in blended families)
- Conflicts between a trust's main body and later amendments
- Inconsistent “specific gifts” versus “residue” provisions
- Unclear distribution standards (health, education, maintenance, support)
- Disputes about trustee discretion and fiduciary limits
- Ambiguous powers to sell, borrow, or allocate income/principal
- Disputes over survivorship clauses and timing of distributions
- Omitted assets or after-acquired property and how it should be handled
- Tax-driven clauses that no longer fit current law or asset structure
California trust and will law is primarily in the Probate Code, which is accessible through California Legislative Information:
https://leginfo.legislature.ca.gov
Common Court Petitions Used in Construction Cases
Trust construction and instructions are often sought through petitions concerning the internal affairs of a trust. Probate Code section 17200 authorizes trust petitions seeking court orders about trust administration, including construing the trust instrument and determining rights of beneficiaries:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=17200
A trustee's duty to administer the trust according to the trust instrument is addressed in Probate Code section 16000:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=16000
Construction disputes frequently also overlap with trustee information and accounting obligations, especially when beneficiaries suspect the trustee's interpretation is being used to delay or deny distributions. A key information duty is in Probate Code section 16060:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=16060
Why Construction Disputes Happen
Construction disputes often arise when:
- The document uses generic terms that do not match the family structure (blended families, stepchildren, adopted children)
- Multiple amendments exist and create contradictions
- The document references assets that no longer exist or were retitled
- A beneficiary predeceased and the document's “anti-lapse” or substitute beneficiary language is unclear
- A trustee is given discretion without clear limits or standards
- The plan was drafted years earlier and no longer matches the decedent's current assets
- There are competing interpretations that create different economic outcomes
Construction disputes may also be paired with will contests or trust contests when one side argues the language is clear but the other side argues the instrument itself is invalid. For will and trust contests, see /will-trust-contests/.
How California Courts Approach Will and Trust Interpretation
California's Probate Code includes rules governing interpretation of wills and trusts, including how courts determine intent and resolve ambiguous or conflicting provisions. The construction statutes for wills appear in Probate Code sections 21101–21122:
https://leginfo.legislature.ca.gov/faces/codes_displayText.xhtml?division=11.&part=1.&chapter=2.&lawCode=PROB
The trust construction statutes appear in Probate Code sections 21101–21122 and are made applicable in trust matters in many situations through statutory cross-references and probate court practice.
One important concept in interpretation disputes is that courts focus on the transferor's intent as expressed in the instrument, applying statutory rules when language is ambiguous or when circumstances require a consistent construction.
Extrinsic Evidence in Construction Cases
Construction disputes often turn on whether the court will consider evidence outside the four corners of the document, such as:
- Prior versions of the will/trust and amendment history
- Attorney drafting file and correspondence
- Notes, memos, and instructions from the transferor
- Family relationships, dependencies, and long-standing patterns of support
- Asset structure and titling history
- Statements made to witnesses or caregivers (where admissible)
Because admissibility and scope of evidence are case-specific, strategy is often built around what evidence exists, whether it can be obtained, and whether it supports or undermines a particular construction.
Trustee and Executor Risk in Construction Disputes
Trustees and executors often seek court instructions to reduce fiduciary risk. Acting on an incorrect interpretation can create surcharge exposure, beneficiary lawsuits, and removal proceedings.
Remedies for breach of trust include compelling performance, enjoining breaches, and other relief under Probate Code section 16420:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=16420
If a trustee's conduct becomes a fiduciary breach issue, trustee removal can be sought under Probate Code section 15642:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=15642
For personal representatives, fiduciary management duties are addressed in Probate Code section 9600:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=9600
Litigation Over Distribution Standards and Discretionary Trusts
A common construction dispute involves discretionary distribution language—whether a trustee “must” distribute, “may” distribute, what expenses qualify, and whether the trustee can consider other resources. These cases often involve beneficiary rights and trustee duties to act impartially.
The duty of impartiality is addressed in Probate Code section 16003:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=16003
Trust Accounting Issues Often Follow Construction Disputes
When distributions are disputed, beneficiaries often request accountings and underlying documentation to evaluate the trustee's interpretation and conduct. The baseline duty to account is addressed in Probate Code section 16062:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=16062
Probate Court Procedure, Rules, and Forms
Construction disputes are handled in the Probate Division and proceed under Probate Code procedures and the California Rules of Court:
https://www.courts.ca.gov/rules.htm
Judicial Council forms and statewide forms access is here:
https://www.courts.ca.gov/forms.htm
Many construction matters involve petitions, declarations, evidentiary objections, and contested hearings that require careful compliance with local probate practices.
Ventura and Los Angeles County Proceedings
Westlake Law Group represents clients in will and trust construction disputes in:
Ventura County Superior Court – Probate Division
https://ventura.courts.ca.gov/divisions/probate
Los Angeles County Superior Court – Probate Division
https://www.lacourt.ca.gov/courthouse/mode/division/probate
Representative Matters
While every case is unique, Westlake Law Group frequently assists clients with:
- Petitions for instructions regarding ambiguous distribution provisions
- Interpretation of competing trust amendments and restatements
- Disputes about survivorship, substitute beneficiary language, and class gifts
- Construction of clauses affecting fiduciary powers, sale authority, and allocation of expenses
- Interpretation disputes involving blended families and unclear beneficiary definitions
- Litigation over whether a gift is specific, general, or part of the residue
- Disputes about discretionary distributions, trustee standards, and beneficiary rights
- Related accounting disputes and requests for surcharge when an interpretation results in loss
Frequently Asked Questions
Is a construction case the same as a will contest?
No. A contest challenges validity (capacity, undue influence, improper execution). A construction case asks the court to interpret and apply a valid instrument. Many disputes include both issues, but they are different claims with different evidence and procedural posture.
What statute allows a trust beneficiary or trustee to ask the court to interpret a trust?
Probate Code section 17200 is a commonly used authority for petitions concerning trust administration, including construction:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=17200
Can a trustee be removed if they interpret the trust incorrectly?
Potentially, depending on the conduct, harm, and circumstances. Trustee removal procedures and grounds are addressed in Probate Code section 15642:
https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=PROB§ionNum=15642
Schedule a Confidential Consultation
Will and trust construction disputes can delay distributions, increase administration costs, and create long-term family conflict if not handled early and strategically. If you are a trustee, executor, or beneficiary involved in a dispute over what a will or trust means in Ventura County or Los Angeles County, call Westlake Law Group at (818) 444-2022 to schedule a confidential consultation.
Our office is located at 30699 Russell Ranch Road, North Building, Suite 210, Westlake Village, California. Virtual consultations are available throughout Southern California.