1.) Does the serving court have jurisdiction? Our taxes are paid and address is not in the same county as the court papers.
You don't say where you are or where the court is or where the plaintiff is but, generally, a lawsuit can be filed where you live or where the contract originated.

2.) Last activity on the account was rent paid in February 2013. Is this outside the statute of statute of limitations for Texas? I see that the plaintiff petitioned March 2017.
The statute of limitations is 4 years from the date of default. That's cutting it close. The default date is not the date when the rent was last paid. It's the date when the rent went into default. For example if your rent was due March 1 2013 and wasn't paid the lawsuit would have to be filed by March 1 2017.

So, when was the rent due date (plus any grace period) and what was the date that the lawsuit was filed with the court?

3.)What circumstances are exempt?
They are seeking $3880.00 plus court costs, attorney fees, etc. I just had major surgery. I have vestibular problems, severe anxiety, debilitating spinal stenosis, panic attacks, confusion, and I am now deaf in my left ear. I am in hardship, have nothing to my name except a totalled car. I am disabled. I have a current SS attorney and a SSI case in process. This is causing me stress which is adding to my anxiety and panic attacks.
There are no circumstances that exempt you from the lawsuit (except bankruptcy). If you owe money, they will get a judgment.

Where the exemptions apply is to the enforcement of the judgment. You are likely to be judgment proof which means that if you have nothing to get, they get nothing. But that has nothing to do with the lawsuit.

What are my options?
Can I file a motion to dismiss or exemption?
Jurisdiction?
How should I proceed?
Your only hope for a dismissal is if the plaintiff messed up on the Statute of Limitations. So give me the dates and lets figure that out.

Are you being sued in small claims court or in regular civil court? Are you being sued by your former landlord or by a collection agency? Does the plaintiff have a lawyer?


Do I need an attorney or can I proceed myself?

I have no way to pay anything. I cannot work. I only receive child support for my son who is 10.