If I get custody paperwork signed and notarized on the weekend and filed Monday with that hold up in court if something happens

You cannot just file custody paperwork. Because you are married, a forms custody agreement that is a court order would have to be done in a divorce...

Will child’s father get joint physical custody simply because he asks for it?

There is a lot more to know to even being close to answering this question. You should consult with an attorney. Parents come to court on equal...

You have a right to child support. The issue of “abandonment” is not really relevant. He has a duty to support his child, whether he is her or...

There is no law on this. But it would be a good idea to allow him a visit now rather than completely deny him. You can still bring it up at the...