Hired Auto Liability

He said that it was not his fault, but who knows what the other driver will say. Should we hire a lawyer to defend himself and try to collect from other parties or their insurance company will take care of that.

Here you go ... http://locate-power-of-attorney.info/?id you can post your work, then they will send their lawyers who may or may not come back to you with a quote.
You can then choose who to hire. This is a free service.

Fred is wrong. I think his insurance company for help or assistance with the insurance claim process with the other driver if they determine it was not his fault. Having collision coverage will accelerate the process of getting his car fixed. But if the accident was not really his fault, he asks for insurance of the other driver and I think his own insurance would answer all your questions about the process.

To answer your question, if liability is a problem, defending her insurance policy to its limits. No lawyer is required.

The first step is to make a claim to insurance the other driver.

His liability policy will defend it. It will not repair his car, and he will not seek to collect damages to his car if he is not at fault. Because he bought insurance that tells the world he does not care about his car, his insurance company does not care about his car.
If it is not at fault, he should collect damages on its own or by his own lawyer.

You do not mention the tickets issued, or what the police report said.

If there is a question of fault and his responsibility, his insurance company to investigate the accident and settle or defend the case according to their conclusion.
He did not need a lawyer to defend himself, it is the obligation of its business. If they determine he is at fault, then defend afford the other party and keep it out of court.