Your daughter wants distance. Honor that boundary. Definitely do not talk with her husband family! To do so creates drama which your daughter definitely will not like.
My daughter sometimes tries to pick a fight. I say nothing and leave. The longest that she has not talked with me was 3-4 weeks. I don't call her. I definitely do not bring or send gifts. She would likely feel I was bribing her.
Before I started just walking away, I told her that was what I was going to do.i told her I love her and didn't want to fight. She was even angrier the first few times. Now, it's a routine and we no longer fight. I've also learned her buttons so I don't bring up those subjects at all.
I suggest you text or write a short note saying you love her and will wait until she contacts you. I would apologize for my part of the argument/fight. Then back off and wait for her to come to you.
If you moved to be close to you, she may feel that you won't respect her boundaries. I would expect, after she contacts you, to not call often. Gradually build a relationship comfortable for both of you. Be willing to talk about how you feel and what you want. Listen to her talk. Find a central place to meet both of your wants.
Consider that a long distance relationship is different and easier in some ways than in person relationships. She may be acting differently because you now live close. Did she know you were moving? If this was a surprise, she may need time to accept the move. How long has it been since you were physically together? We do change as we get older and have different experiences.
I wouldn't jump to the conclusion her husband is abusing her, keeping you away. Do you know her husband? Were you comfortable with him in the past?
I know not talking and not seeing her will be difficult. I suggest get some counseling to help you do this.
Could some other family member or friend tell you if she's OK?