Are their any laws in this particular area?

Feeling there's a threat...no. A serious doc umented threat proven in court... possibly.

You can move. Only your lawyer can tell you if it will hurt or help you get custody, and yes you need counsel.

Will I lose custody of my twins?

You have given us no facts to answer you. However custody litigants without lawyers usually have bad outcomes.

Can a lien holder reposses my car if I quit my job from him but still make my monthly payment?

No, not if all your payments are current.

When you know you don't want to get married but engage in a lifelong partnership, what are your options for the "just in case"?

You lose many rights absent marriage with things like social security, taxes and rights if you split. You can use a will, Poa, and health care...

Where do I go from here?

It may be too late but hire the lawyer you should have hired at the beginning.

How do I find out if I am divorced?

Unless you have seen divorce papers assume you're married and need to file. Checking is hard as you'd have to check every county where either of...

How does a wife legally take over the finances of her husband when he is deemed incompetent due to a medical disability?

I agree with Attorney Douglas. If he does a POA note that it doesn't prevent him from acting on his own or revoking the POA.

What would I need to do to have my ex husband brought to Gerorgia for a contempt of court

Get a Tenn lawyer to domesticate and enforce it there.

Will child support attach my new husbands income

No. To protect your spouse you also need to do separate tax returns and bank accounts and assets.