I have filed papers to sue someone but I need to raise the amount in my lawsuit..is this possible to do?

Yes you can. Use the Amendment to Complaint Form. If there is no answer on file you can amend without court order.

Does re-filing a case days after dismissing the case on the eve of trial allow for new discovery/witnesses??

On the dismissed case you can file for your recoverable costs. If the new lawsuit is within the statute of limitations, they can refile.

What would be the proper way to question, or dispute fees?

You are correct. A law firm may not bill for the attorney's time to get up to speed when that was already billed. You can speak to the partner in...

Does homeowners insurance cover injuries sustained by the renter?

Yes, where the homeowner was negligent.

You can replace your attorney at any time.

The defendant must serve the the answer on you.

Who can I sue for my personal injury?

Both. The store is responsible if the employee's action was not intentional.

Does a case have to be "disposed" in CA to move it to a sister state for "writ of execution"?

Once a judgment is obtained in one state, the judgment creditor may apply for a sister state judgment.

Is it possible to sue a hospital for negligence ?

Yes there is a potential case. An experienced attorney consultation is a must.

I suffered a head injury at a pool party can I claim ?

You might, depending on more details on how it occurred. Seek out a Nevada experienced attorney.