Is it likely that a judge will give me custody of my granddaughter?

It is definitely worth having a consultation with a lawyer to discuss in more detail.

Liability issue

There may be some liability your wife can fix that by gifting the car to him.

Mother died 9 yrs ago, did not leave will, left old hse valued $20,000, brothers live there. Do I have to do something w/courts

Yes, consult a probate lawyer to discuss exactly what you need to do.

Possibly. If they do, it will reduce the amount of interest you have to pay

How to ensure inheritance if no will in Texas

Hire a probate lawyer without delay. There are several processes and you need advice which is best for you.

If my 18 year old daughter choose to live with me while finishing high school, do I still have to pay child support ?

Talk to a lawyer about modifying your orders.

I'm 19 , & pregnant with my bfs baby he lives in el Salvador & he's never been here in how long will it take to fix papers ?

Sit down with an immigration lawyer.

What is appropriate amount of effort to inform another parent and waiting time on decisions to be made?

If your order requires agreement, you need to get it modified. Hire a lawyer to review the order and see what your options are.

What type of attorney would I need?

Any family lawyer who has experience with military families will be good.

If I have custody, but my mother has Guardianship over my daughter, with my consent, can I take my daughter away from her?

Guardianship has a particular meaning to lawyers. It's probably not what your mom has. In Texas, the term is conservatorship. Take your orders...