There would need to 2 medical providers to sign an affidavit stating that the person is not component to make their own decisions.

Ideally you want the other side consent. Without it may be difficult.

File a Motion to modify in the same case that the original order came from (unless no one lives in that county anymore than file in the county you...

In theory no. Its called Res judicata. You may want to file a motion to dismiss.

Depends on how the house is titled and depends if there is an order/agreement of exclusive use and possession to her.

Have a conversation with the other parent and if that does not work, sit down with an attorney to see if it amounts to something that warrants a...

You just need the information sheet, complaint for divorce, and the Marital Settlement Agreement. If there are minor child(ren) involved then also...

Hire an attorney to write a letter and if that does not work then file suit.

A court would not review a letter. You would file a motion if you are looking at certain relief and you would need to send a copy of said motion...

If you are living aboard even more reason why you would want to hire an attorney to do this for you (to make sure all the i's are dotted and t's...