What can i do?

Hire an attorney to review everything. Your post is too vague.

Your post is unclear. Hire an attorney to review the facts.

Can a bank stop me from access to my statements

$7 statement fees is not something to bother attorneys over. And you’re not going to sue either.

Does common law apply or can child/mother receive any benefits from biological father when all live/have lived together?

The mother should see a family law attorney to look into getting child support.

Do i legally have to pay back money that was offered to me?

It depends on who the court believes. You saying it was a gift. Your ex apparently saying it was a loan.

I see no case here. This is at best a customer service issue not a legal issue.

Wish to hire attorney to help protect assets

This is a statement, not a question. Not a legal question. Attorneys are not allowed to solicit or refer business in their responses here. You...

If I plead one theory and seek summary judgment and its denied can I amend my complaint?

It is possible if the judge gives you permission but if your case was that far along I find it unlikely a judge would find a good cause to allow...

You cannot make law-enforcement prosecute a case. If you are injured call an attorney to prosecute a personal injury lawsuit.

Can i sew this hotel for refunding the 590 $ i gave them for a room for the week to the wrong person ?

Yes, assuming you can prove your allegations.