If you have a blended family in Washington State, there’s something important you should know: stepchildren are not legally entitled to any inheritance from their stepparent.

That fact surprises many families — and unfortunately, I’ve seen the consequences firsthand. I’m Christopher Small, owner of Seamless Law Firm, where we focus on estate planning and probate. Over the years, I’ve watched too many well-meaning families unintentionally disinherit stepchildren simply because they didn’t set up their estate plans correctly.

Let’s talk about how that happens — and how to prevent it.

Why Stepkids Don’t Automatically Inherit

In Washington State, inheritance laws are based on legal relationships. Biological and legally adopted children are automatically recognized as heirs. Stepkids, however, are not — unless they’re specifically named in your estate plan.

That means if you have a will or trust that doesn’t explicitly include your stepchildren, they have no legal claim to your estate, even if you’ve raised them like your own.

The Common Mistake Blended Families Make

Here’s a situation I’ve seen many times:

• Two parents — one or both with children from prior relationships — create a simple will together.

• The plan seems fine while both are alive.

• When one spouse passes away, everything goes to the surviving spouse.

• But when the second spouse dies, the estate passes only to that spouse’s biological children.

The result? The stepchildren from the first spouse are unintentionally cut out. Often, no one realizes this until after both parents are gone and it’s too late to fix. Even in families that get along, discovering that a will is invalid or incomplete can lead to painful disputes and unintended outcomes.

The Solution: Proper Estate Planning

If you have stepchildren and you want to ensure they’re taken care of, you must create a proper estate plan. That means:

• Clearly naming each child or stepchild you want to include in your will or trust.

• Working with an experienced estate planning attorney to ensure your documents are valid and legally enforceable.

• Reviewing your plan regularly, especially after major life events like marriage, divorce, or the birth of a new child.

An estate plan isn’t just about dividing assets — it’s about protecting your family and honoring your intentions.

Final Thoughts

Blended families are built on love and connection, not just legal definitions. But when it comes to inheritance, the law doesn’t always reflect that reality. If you want your stepchildren to be included, you have to make it happen intentionally.

At Seamless Law Firm, we help families across Washington State create clear, effective estate plans that prevent surprises and protect everyone you care about.

If you’re ready to get started or need help reviewing your current plan, visit cmslawfirm.com