Can I sue manufacturer of protein drink (contains latex)?

So what were your damages? Without damages, there is not much of a case.

I don't see any basis for a malpractice claim, as described by the other posts.

Your mother did not do anything illegal.

Can I sue?

Attorney Belli's post is spot on - not enough for damages but speak to the manager and they may provide a complimentary meal.

Can a judge allow the diciest person to be sued as an individual in an unlawful detainer case?

Yes, an estate can be sued after the person is deceased.

Would this be considered malpractice and is it worth going after or what can I do?

This is not malpractice and you also have a statute of limitations issue.

After a demand letter is sent to an at fault insurance company, when should I expect an answer or payment?

The other posters have spelled it out clearly - and you should get a local personal injury attorney to assist.

I was a passenger in a car accident and Im suffering injuries from back pain a bruised liver which Insurance company pay me

The insurance company of the at fault driver would pay, If not insured, then your own insurance.

As posted by the others, you will have to sue him to get payment. The rental company can sue you. i would follow the advice posted.

My 16 year old hit buy drunk driver. She has 2 passengers in her car but since she just got her license that is not allowes

As Attorney Levy posted, she is not liable for the damages if she was not at fault. But she may lose her license or have it suspended.