Can my soon to be ex-wife remove me from her life insurance, health insurance and retirement before we are divorced

Legal or not she did. You need to hire a divorce attorney and protect yourself. Good luck.

Should I sue?

Go see local personal injury attorneys and pick one you like. A premises case is not the easiest but you have a "good injury". Good luck.

Can i sue

Go see a local personal injury attorney. Without an attorney the insurance companies will take advantage of you.

Can a veteran sue a hospital if one of their security guards tackled them in the hospital parking lot?

Well if the vet suffered some injury from being tackled then perhaps. This sounds like a go complain to the management type of event.

Do I have a Negligence case against this daycare? My daughter was not been watched properly which resulted in an injury.

I agree with the other attorneys that you should go see a local personal injury attorney.

You'll get no where with Publix without an attorney. Publix is well know to fight every claim. You should see an attorney.

Am I able to be sued personally for a liability claim if I am covered under my employer's insurance?

If you employer's insurer settled for money then they secured a release that should have named you also. Speak to your employer. In any event be...

If they have insurance, they need to report that accident.

What will happen to me if I am absolutely unable to pay my medical bills? I have health insurance but still owe more than I have

You may wish to look at bankruptcy. If so go see a bankruptcy attorney.

How can I get my soon to be ex-wife off my insurance before she signs the final decree?

How? If she signs it's too late. You need to get her to stipulate to a change before the signing. That or go for a modification.