I are not giving enough information here to provide an intelligent response. You need to contact an attorney to assist you

My wife live in Mexico

I do not see a question here

If someon falsly files police report accusing you of rape can they be sued or charged with crime knowing report was false

Yes, it is possible. You need to consult with an attorney,

I surrendered my license over 6 months ago, but i have tickets in NJ; Can NJ keep me from restoring my PA license?

Yes!!! Pay the tickets off, work out a payment plan

I am married in Mexico and I know that my wife has a new relationship. We are separated for more than 8 years already.

You consult with an experienced matrimonial attorney. If you are in PA, you file a Complaint for Divorce with a count for Equitable Distribution of...

Being harassed in Pennsylvania trailer park.

It hardly constitutes harassment. Try to talk to the management if you sure none of it is true

What is common law marriage in PA

Marriage is the best bet

How do I respond to the Petition for Divorce I was served?

I doubt you were served with a Petition. More likely it was a Complaint for Divorce. In PA, a Complaint for Divorce does not require a response

How long will it take to be granted a divorce after two years of separation (if not contested). Do I need him to sign papers?

2-3 months after the Complaint is filed. You need to serve him properly but he does not need to sign anything

Can i refuse to testify since Im the victim?

You must appear. Several time in my practice a Material Witness warrant was issued to compel a victim to appear