When I git married do I have to git new I.D with my new last name on it?

I believe most states require you to update your information on legal documents within a certain time

Adult Adoption.. Costs and Do I really need a lawyer?

Yes you need an attorney and I would highly recommend you hire one with some experience in adult adoptions

Adoption same sex

In Nevada family law attorney should be able to answer this question

Is it possible that three parents can retain rights to a child in a step-parent adoption?

Given that you're in California it's entirely possible the courts there may look at that scenario as normal. I know in the state of Missouri there...

I am needing legal advice about an estate account, and other stuff

I encourage you to google probate attorney in your local area

If there are no children, grandchildren, or family, how will my very small estate be handled and by whom?

The state or court will appoint a personal representative and they will look for your nearest lineal descendent or relative

How do I get my deceased mothers car total in my name?

If your mother has been dead less than one year you can open a probate estate or you can wait one year and file a determination of heirship.

I would encourage you to call the state or local licensing department

Is drug use by neighbors sufficient reason to break a lease without legal repercussions?

Perhaps. If the use is a hazard or danger to your health.

If a civil small claims suit is filed against me can i do a counter defendents suit in this situation?

You may file a counterclaim in small claims court but if you choose to do so I would encourage you to do it righty hiring an attorney to review...