Our divorce was finalized in early November, and long story short, she keeps violating the decree.

Small violations, big violations, and even trespassing in my house.

The most recent violation was she left the kids at her mom’s overnight while she did something else - explicitly forbidden in our decree. If one of us can’t care for the kids overnight, the other has the first right to take them. I wasn’t informed until after the fact, and frankly, I probably wasn’t supposed to find out. I’m not concerned about her mom, but I am concerned about the other relative living there who uses drugs and is accused of being unstable and abusive.

What are my options here?

Threaten her with a lawsuit? Threaten to challenge her custody?