As thousands of state residents enroll in Washington’s expanded Medicaid program, many will be surprised at fine print: After you’re dead, your estate can be billed for ordinary health-care expenses. State officials are scrambling to change the rule. It wasn’t the moonlight, holiday-season euphoria or family pressure that made Sofia Prins and Gary Balhorn, both 62, suddenly decide to get married. It was the fine print. As fine print is wont to do, it had buried itself in a long form — Balhorn’s application for free health insurance through the expanded state Medicaid program. As the paperwork lay on the...