I'm confused. In June you said something about a 401K loan for a home purchase. It sounded like this was something in the past and you'd purchased the house. How long have you been living with Ashey's mom? Are you and Ashley married? I'm wondering if you're not married if it could have something to do with her mom's attitude, and that you're the true target as an "interloper" who isn't paying rent. While I can understand your frustration, I can see Ashley's mom's side, too. Her adult daughter has a caregiver (you), and she (Ashey's mom) is footing the housing bills for two people instead of one now. If she's racking up debt on her own, she might be looking for any means of pulling in cash that she can. It isn't uncommon for parents to ask for rent from their grown children.If you and Ashley aren't married, is it an option for you to find a place nearby by yourself that you can afford and Ashley to stay with her mom until she finishes school and you can afford something better?What are your options for increasing your income? Do you work full-time now? While I understand you're Ashley's caregiver, it sounds like she's able to care for herself for the most part or she wouldn't be going to school.
As her husband, I guess I'd expect that you'd pay Ashey's expenses, but you shouldn't have to pay her mom's expenses, too. It sounds like a toxic place for you and Ashley to be. You might not be able to get your cash back from her mom, but I think it would be a good idea if you start apartment hunting before she drains any more from you. It sounds like you're paying $650 in rent to her now. Can you find a 1-bedroom apartment near work for both of you? If you can get it as close to work as possible, you'll reduce whatever you're paying in gas money to/from work and be near Ashley in case you need to run home quickly to help her.