What can a person do to clear there name of this problem should he take a DNA test if she is pregnant or will a lawyer be needed

The "turkey baster" technique? Are you saying that an underage girl is claiming to be pregnant by your "homeboy"?

Can a individual you live with claim that you stole a. Firearm and put warrant on you.

And? Have you been arrested? Have you seen the warrant? Are you charged? Do you have a court date?

And? Were you arrested? Were you charged? If so, with what?

What can I do about a group of people defaming me in a public chatroom constantly?

Do you even know who these people are?

Can public housing put a video camera above my front and back door without my consent?

No. You don't own your residence, nor the building, nor the land outside.

Am i still legally married?

Umm... no. It doesn't work that way. Also, if he burns the deed to your house, you still own it. And if he burns your driver's license, you can...

Is it illegal for a cop to jerk me out of my car if I haven't hurt anyone, or have weapons?

Okay, and then what happened? Were you arrested? Taken to jail? Because it doesn't even sound like this was a real police officer.

I live in Tennessee and the school system took my sons phone and searched it ... can they do tha

Can they do it? They already did it. Every search is legal until a judge says it isn't. Hire a lawyer and fight the case.

Can I remove my ex girlfriend from my lease. When I pay all the bills

You're free to leave, but if she's on the lease she has as much right to be there as you do.

What happens if a policeman ask you to come in to pickup a ticket for hot and run if you weren't driving the car?

What happens? Maybe you just pick up the ticket. Maybe you get arrested. Either way, you need a lawyer.