Do notorized letters give one legal protection in court?
No, but it does have to authorized by Landlord and Tenant.
No, a lease agreement does not have to be notarized.
3-4 pages long
No, you need your actual passport.
No he can not. He have up to 30 days from the date you move out, to give you a notorized letter of any damages, if not send him a notorized letter demanding your security,You can sue him in court.
The correct spelling is "notarized" (officially endorsed, as by a notary public).
Yes, in most (all?) states such a will IS legal.
Because the court has to sign off on it.
You can get the forms for free online and the cost is none or minimal just have it notorized
An unsigned document is not legally binding.
You can have a paralegal look over the will for you. They usually don't charge much.