What should I do in this case

Return it for a new one and maybe go to the doctor for treatment.

Who is responsible?

Consult a personal injury attorney as soon as possible. The driver of the uhaul is at fault. You just need to find him.

Will I be obligated to pay because I signed an agreement and later realized I may be scammed ?

Sounds fishy to me. report it to your insurance and let them handle it from here.

Does insurance company have to pay claim if driver can't be summond

Your attorney should be able to answer this question. The court does not have jurisdiction until there is service. Also the insurance company may...

What I have to do some body hit my car parking in front my house?

Report to the police and your insurance company.

You have turned a small civil matter in to a potential criminal charge. Consult a traffic attorney.

Where would I stand in a lawsuit against my dentist? I need treatment, expenses, etc.

Consult a med mal attorney as soon as possible.

What steps for I take next?

Consult a personal injury attorney as soon as possible.

I am a Pro Per / Not as smart as you all however I understand what I ask and concise if you can please responses are in need.

There is so much that can be done about this but this is not the form for it. Please consult an attorney. It might cost you some money but it will...

How,can my vechile be considerd a nuisance

Consult an attorney as soon as possible.