Will I be arrested at the dps office?

That arrest will be pretty much automatic.

That would be seven and a half years before parole eligibility. After that, it would be a matter of what parole wants to do.

Poss cg 2>=1g<4g, 1st offense, mean jail time?

The best approach will be to hire a lawyer. City jail will not be an option but you don't want it anyway.

Can I get a clemency or pardon in Texas for a felony reduced to misdemeanor assault while having two trespasses?

Clemency and pardons are beyond rare.

Can i be charged two weeks after i was found in possession of a syringe with meth residue and a pipe ?

That is not just possible, it is routine. Don't do it. Call a lawyer.

Mr. Bailey would be correct except for the domestic violence issue, to which you pled, and which means you can never again legally possess a firearm.

Im 17 and live in texas can i be charged with possession of a handgun

Yep. Gotta be 21 or in the presence of your parent(s).

Will having a home security cameras give the police reasonable suspicion to enter my home ?

I agree with the previous posts. It won’t be reasonable suspicion, but they get suspicious anyway. Anytime you invoke rights cops get suspicious....

How can I submit a response to a subpoena without showing up?

Redirecting this to the car accidents forum.

Can my husband help me get my green card even though he had a felony?

Redirecting this to the immigration forum.