Yes, you can sue for damages caused by negligence.
A properly constituted agreement not to sue is called a 'quitclaim' and is perfectly legal. This assumes you bothered to get it written down and signed. If someone just said "I promise not to sue you", then the burden of proof is likely going to fall on you.
Yes, a customer can sue an employee for misconduct or negligence if the employee's actions caused harm or damages to the customer.
Yes, it is possible to sue a District Attorney's office for misconduct or negligence, but it can be challenging to prove and win such a case.
NO.
Yes, you can sue a company for negligence in a personal injury case if their actions or lack of actions caused your injury.
No, you cannot sue God for damages or negligence in a court of law as God is not a legal entity recognized by the legal system.
You can sue anybody you want. Even the President. But in this case, the insurance company did not cause your sons death. You will need to sue the neighbor directly and if he has liability coverage then his insurance company might defend him in the suit.
Yes, you can sue a realtor for breach of contract or negligence if they fail to fulfill their obligations or act negligently in their duties as a real estate agent.
Yes, you can sue an LLC for negligence in a business transaction. An LLC can be held liable for negligence if it fails to meet the standard of care expected in the transaction, resulting in harm or damages to the other party involved.
yes
Yes.