Quote: It might be weird having him at my mom's since he's not step-grandson anymore, but I guess it will be okay. What do you think?
This one I can comment on. I don't know how close your parents were/are with her kids, but if they were even a little, then please urge your parents to continue that bond with her kids. When XH and I were separated last summer his dad decided he no longer was going to have anything to do with my D (D10). This really hurt her feelings and she didn't understand why. (This mad had been her grandfather for almost five years at this point, she was only 5 when he came in to her life.) So if there is a bond there, I would try to help it continue.