I was just curious if a father gets a paternity test for his kids, (or finds out through DNA testing that is so popular these days) and it turns out he is not their father - can he sue the mother for the return of all the child support that he paid her? 

My skids both got DNA tests for Christmas from Bm. Its surprised me because she cheated on their dad throughout their marriage. I always wondered if those kids were his. But I think that he would have to take the same brand DNA test to see if there is any relation, right?

My DH recently had an epiphany and realized that he has not been a parent all these years to SD's, but instead tried to be a friend -mainly because he was terrified of BM and of losing the love of his daughters.  He has begun to set healthy boundaries with them, as well as his sister, who recently got suckered into defending SD21, aka the sociopath. SD21 wanted to come over to our house for Thanksgiving and see her sisters, but she is banned from our house due to her lack of apology for many of the disrespectful things she has done to me.

Dh had an epiphany after his daughter, 21, sent his crazy tempered sister after him via group text. He said he had chest pains and felt like he didn't care if he died, then a wierd sensation overtook him. He said he realized he had been too afraid to piss off his daughters, so he hadn't stood up to them like he should have. He decided to rewrite his rulebook about his kids. 

Dh and I got ambushed last night. I fully believe it was a planned attack by the three SD's. When the harpy twins SD16 and SD18, screamed accusations and insults at me a few weeks ago, one of the questions that SD asked me was "If SD21 wanted to come over for holidays, would you be willing to let her?" I told her that is up to SD21.