Does my opinion in this count? Does the legal, judge signed document matter?? What can I do?

File a motion to prevent your ex from moving. You should hire a lawyer to represent you in the case.

Can he prevent us from moving?

If not married to the father and no time sharing orders in place then you can move. You should hire a lawyer to represent you in the case.

What if anything can I do to prevent their mother from regaining custody.?

If the mothers parental rights have not been terminated then upon completion of the case plan she will get them back.

You have to file a verified motion for drug testing. You should hire a lawyer to represent you in the case.

In an amicable divorce is it possible to have one lawyer represent both couples?

Cannot do that, each person has to have their own lawyer. .......................

How do i put this in writing to protect both parties and what other contingencies should i be thinking of?

Have a lawyer consult with you to put together an agreement that has all the details you want.

Will a Judge consider his violent criminal record at injunction hearing if it was recently expunged (after I filed my petition)

Prior bad acts may not be considered, you have to focus on the recent acts committed upon you. You should hire a lawyer to represent you in this...

With all these kinds of things that she's done (with proof from txts etc) will that help my chances with 50/50 or even 55/45?

If you intend to be an involved parent then you have a good chance of getting 50/50 custody. You should hire a lawyer to represent you in this...

How should I send it??

Just file a motion for contempt/enforcement. You should hire a lawyer to represent you in this matter.

Because he did not put that the agreement was until we went to court should I or should I not sign the agreement

Do not sign the agreement. You should hire a lawyer to represent you in this matter.