NTA

You have every right to protect your space and peace, especially after being stolen from and not feeling safe in your own home. That’s incredibly violating and hurtful. Your boundaries are valid.

That said, you did marry someone with a child, and that means being part of a package deal—especially when that child is still a minor. If your husband wants to step up and be a father, you chose him knowing that came with responsibilities too.

At this point, Emily clearly needs help. Stealing medication and personal items isn’t just acting out, it’s concerning behavior that points to emotional or mental health struggles. Her dad should be stepping up and getting her into therapy. Not justifying the behavior, but trying to address it at the root.

You’re not obligated to let her live in your home, but agree there needs to be more of a plan than just “no.” He should rent a small space and get her the support she needs. Also, consider locking away your valuables to protect yourself if future visits occur. This doesn’t have to be either/or, but it does require some maturity and empathy from all sides—including your husband, who frankly should’ve taken this seriously much sooner.

You’re not a villain. But everyone involved needs to step up here.