I'm very sorry to hear about your current predicament. I don't know what your relationship with your mother is like, but I know what I'd do...

My mom is a narcicistic, manipulative, controlling, emotionally abusive drunk who made my life hell until I got married and moved out, and is still making it more complicated than it needs to be... I'd change the locks, prosecute to the fullest extent of the law, get a restraining order, and tell her to off.

But with that said, my mom would never do something like yours did, and I do love her, and I sincerely hope she gets her act together...

I hope you can resolve this issue, get your kilts back, and restore your relationship with your mom and your mother in law. Good luck!