1. What Makes a Complex Divorce Different?
The harder cases are rarely difficult because of one issue alone. A divorce may combine California community-property rules with federal military law, international custody rules, or an existing support order. The first task is to separate those questions rather than assume one rule or one court controls everything.
Four Questions to Identify Early
| Issue | Question That Matters |
|---|---|
| Business, stock, or real estate | When and how was the asset acquired? |
| Military retirement | Does the court have the federal-law jurisdiction required to divide retired pay? |
| Child in Mexico | Which court has custody jurisdiction, and is an emergency order available? |
| Existing spousal support | Has an event occurred that permits or requires modification or termination? |
A broader overview of divorce and related family disputes is available through the Family Law & Divorce practice.
2. High-Asset Divorce Begins with Characterization, Not Valuation
Before deciding what a business, stock award, or house is worth, the parties often need to determine what portion is community property. California law generally characterizes property acquired during marriage while domiciled in the state as community property, while property owned before marriage or acquired by gift or inheritance is generally separate property.
Why Tracing Records Matter
An asset's current title does not always answer the characterization question. Funds may have moved between separate and joint accounts, a business may have existed before marriage but changed during it, or real estate may have been refinanced with different sources of money.
Useful records can include acquisition documents, bank and brokerage statements, capitalization tables, mortgage records, tax returns, and documents showing the source of funds. In a substantial marital estate, those records may matter as much as the eventual appraisal.
More detailed financial issues are addressed in the High Net Worth Divorce practice.
3. Military Divorce Adds Federal Rules to California Family Law
A divorce involving an active-duty or retired service member cannot be analyzed solely under California property law. Federal law determines whether and under what conditions a state court may treat disposable military retired pay as divisible property, while separate federal rules govern benefits such as TRICARE.
Being Stationed in California Is Not the Same As Federal Jurisdiction
Under 10 U.S.C. § 1408(c)(4), a court generally may not divide a service member's disposable retired pay unless jurisdiction over the member rests on residence other than a military assignment, domicile, or consent. A posting in California, standing alone, therefore does not answer the military-retirement jurisdiction question.
Tricare Eligibility Is a Federal Benefits Question
A divorce judgment does not itself create continued TRICARE eligibility. Former-spouse eligibility depends on federal requirements administered through the military benefits system, including the applicable service and marriage-overlap rules.
This distinction matters because authority to dissolve a marriage, authority to divide military retired pay, and eligibility for federal health benefits are separate legal questions.
4. A Child Crossing the Mexico Border Creates a Jurisdiction Question First
When a child moves between California and Mexico, the immediate question is not simply which parent should have custody. Courts may first need to determine which jurisdiction can make or modify a custody order and whether an existing foreign order must be recognized.
California'S Uccjea Can Apply to Foreign Countries
California Family Code § 3405 generally directs courts to treat a foreign country as though it were another U.S. .tate for specified UCCJEA jurisdictional purposes. It also provides for recognition and enforcement of qualifying foreign custody determinations, subject to a human-rights exception.
That analysis is separate from the broader divorce case. A court's authority to dissolve the marriage does not automatically establish jurisdiction over every custody issue.
Emergency Jurisdiction Has Its Own Requirements
Under Family Code § 3424, a California court may exercise temporary emergency jurisdiction when the child is physically present in California and the statutory emergency conditions are satisfied. A temporary emergency order does not necessarily establish permanent custody jurisdiction.
If a child has been wrongfully removed to or retained in Mexico, the Hague Abduction Convention may create a separate return proceeding. Mexico is a U.S. .reaty partner under the Convention, but a Hague return case is not the same proceeding as a determination of permanent custody.
For disputes involving more than one country, see the International Marriage Divorce practice.
5. Custody Disputes Can Also Turn on Evidence of Safety and Parenting
Substance-use allegations, requests for supervised visitation, and other parental-fitness disputes require evidence tied to the child's health, safety, and welfare. Local court procedure becomes relevant here, even though the underlying custody law remains California law.
San Diego Family Court Services Has a Local Procedural Role
When parents dispute custody or visitation, San Diego Superior Court's Family Court Services conducts child custody recommending counseling before the scheduled hearing. If the parents do not reach an agreement, the counselor may provide a written recommendation to the court.
The court also publishes resources for substance-abuse assessment, testing, treatment, and professional supervised-visitation providers. Those outside providers should not be described as county agencies or as extensions of the court.
6. Remarriage and Cohabitation Do Not Have the Same Support Consequence
Post-judgment spousal support is governed by statewide California law, not a separate county-specific cost-of-living rule. Remarriage and cohabitation are particularly important because California law treats them differently.
Remarriage Can Terminate Support
Unless the parties agreed otherwise in writing, Family Code § 4337 provides that a support obligation terminates upon the death of either party or the supported party's remarriage.
Cohabitation Creates a Different Analysis
Cohabitation does not automatically terminate support. Under Family Code § 4323, cohabitation with a nonmarital partner creates a rebuttable presumption of decreased need for support, and a court may modify or terminate support after determining that circumstances have changed.
Existing orders and negotiated terms still matter, so the judgment or settlement agreement should be reviewed before assuming that support has ended. Related support issues are covered in the Spousal Support practice.
7. When Legal Review Matters Most
A San Diego County divorce lawyer may become particularly useful when several legal systems overlap, for example, when military retirement accompanies a domicile dispute, a child has crossed the Mexico border, or substantial assets require characterization and tracing.
Identify the Controlling Issue before Choosing a Strategy
The practical starting point is to identify which court has authority, which law governs each disputed issue, and which records can establish the relevant facts. Separating those questions early can prevent a property, custody, benefits, or support issue from being analyzed under the wrong legal framework.
17 Sep, 2026
