Short answer: Families fight over inheritance in California mostly for three reasons: there was no will or trust to begin with, the estate plan was never updated after a marriage, divorce, or new grandchild, or the estate ends up in probate, where statutory fees and delay give everyone time and reason to dig in. On a $1,000,000 estate, ordinary statutory probate fees alone run about $46,000 before court costs, and that kind of money on the table turns old resentments into litigation.
What actually causes these fights?
Money is rarely the real trigger. The real trigger is usually one sibling feeling like the plan confirmed what they always suspected: that a parent loved someone else more, or trusted someone else more. An outdated will, a house left “to the kids” with no instructions on who lives there or who buys out whom, or a trust nobody funded all create the same problem. They leave a gap, and family members fill that gap with their own version of what the parent meant.
Poor documentation makes this worse. A will or trust drafted decades ago, before a second marriage or a falling out with one child, no longer reflects reality, but it is still what controls unless someone updated it. Nobody finds that out until after the funeral.
What happens when there is no will at all?
If a person dies without a will in California, the intestate succession statutes decide who inherits, not the family’s sense of what the person would have wanted. Prob. Code § 6400. For community and quasi-community property, a surviving spouse takes all of it, both halves. Prob. Code § 6401(a)-(b). For separate property, the spouse’s share depends on who else survives: everything if there are no children, parents, or siblings, half if there is one child or a surviving parent, and one-third if there are two or more children. Prob. Code § 6401(c). If nothing passes to a spouse, or the person was unmarried, the law moves down a fixed line: children first, then parents, then siblings, and outward from there. Prob. Code § 6402.
That fixed order does not bend for fairness. A stepchild who was never legally adopted inherits nothing under intestate succession, no matter how close that relationship was. An unmarried partner, no matter how long the relationship, inherits nothing either. Prob. Code §§ 6401 to 6402. Families who assumed “of course my stepdad would want me taken care of” find out the statute does not agree, and that is where fights start.
How does probate itself make conflict worse?
Even a valid, well-drafted will still has to go through probate if the estate is large enough, and probate is public and slow. Most California probate cases take twelve to eighteen months from the date the court appoints a personal representative. That is months of a house sitting empty, an inventory being disputed, and siblings watching every decision the executor makes.
The money adds pressure. The statutory fee for a probate executor is 4 percent of the first $100,000, 3 percent of the next $100,000, 2 percent of the next $800,000, and lower percentages above that, and the estate’s attorney is entitled to the identical fee calculated the same way. Prob. Code §§ 10800, 10810. On a $1,000,000 gross estate, that schedule produces $23,000 for the executor and another $23,000 for the attorney, $46,000 in ordinary fees before bond, court costs, or any extraordinary work. That fee runs on the gross value of the estate without regard to any mortgage against it. Prob. Code § 10800(b). When family members watch $46,000 in combined statutory fees leave a $1,000,000 estate before anyone gets a distribution, and the process drags on for over a year, tempers that were already frayed by grief tend to break.
Estates under a statutory threshold can skip formal probate through simplified procedures, but many families do not know that until they are already in litigation. California requires formal probate only when probate assets exceed $208,850, gross value, for deaths on or after April 1, 2025. Prob. Code § 13100.
Does a trust fix this?
A will, by itself, does not avoid probate. It only takes effect once a court validates it through the probate process. Only a properly funded revocable living trust moves assets to beneficiaries outside of probate, and “funded” is doing real work in that sentence: a trust that was signed but never used to actually retitle the house, the accounts, and other assets does not avoid probate for whatever was left out. That is one of the most common and most avoidable sources of family conflict Ridley Law sees: a parent who did the paperwork but never finished the job.
A trust does not eliminate the possibility of a fight either. A trustee owes duties to the beneficiaries and cannot use trust property for personal benefit. Prob. Code § 16004. Beneficiaries are entitled to accountings, and any of them can petition the court to compel an accounting, get instructions, or in serious cases remove the trustee. Prob. Code § 17200. When a revocable trust becomes irrevocable, usually at the parent’s death, the trustee has to send formal notice to all beneficiaries and legal heirs within 60 days, and that notice starts a 120-day window during which the trust can be contested. Prob. Code § 16061.7. A trustee who is also a beneficiary and who is slow, secretive, or seen as playing favorites can trigger exactly the same family war a bad will can, just inside a shorter, more private process instead of a public one.
How do blended families change the picture?
Second marriages, stepchildren, and children from different relationships raise the stakes because the statutes were not built around blended families. A surviving second spouse and adult children from a first marriage often have competing, entirely reasonable expectations about the same house or the same account, and California’s community property and intestacy rules do not automatically split the difference in a way that feels fair to everyone. Without a plan that spells out exactly who gets what, and why, each side tends to assume the worst about the other.
What to do next
If your estate plan predates a marriage, divorce, death, or falling out in the family, treat that as the trigger to update it now, not after you are gone. If you are already administering an estate or trust and sense a fight building, get the accounting and the timeline in writing early, before positions harden. Either way, talk to an estate planning attorney about whether your plan actually accomplishes what you think it does, including whether your trust is fully funded.
Figures verified July 2026.
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