You cannot use a rental car to tow.
You can buy insurance from any rental car company in every state. Car insurance companies do not sell special insurance just for rental cars but most policies cover you when you are driving a rental car.
You can obtain a rental car anytime you wish. Whether insurance or the repair company will pay for it will depend on their policies and coverage.
It would depend on your insurance agreement. Some policies include free rental car in cases of accident, others don't. On some policies you can choose it as one of your options.
That depends on the policies of the rental agency. 21 is typical.
Some auto insurance policies transfer to rental cars, and some do not. You need to ask your insurance agent about the details of your insurance policy, and the specifics of coverage while you are driving a rental car.
No, you would have needed to purchase rental car, or rental reimbursement coverage, unless this was a theft, in which case some policies provide rental car under comp coverage for total vehicle thefts.
Rental reimbursement is an optional coverage so if you add this option then it will be covered. In a liability situation where the other party is at fault, you will be given a rental car while your vehicle is being fixed or since the accident if yours is not drivable.
Yes you can get a rental. However, some companies may have different policies under what circumstances you're covered when it comes to car rentals. Read your policy.
Most personal auto policies provide coverage for the rental of a temporary substitute vehicle (such as when you are traveling or your car is being repaired).
Well a person can take a car on rent, by any car renting company of his choice. The tenure can be 6 months - 12 month of car rental and even more depends on policies.
If rentals means rental cars, then no. Rental car insurance is optional, however many insurance policies can include rental insurance, so purchasing it from the rental company can be pointless in some cases.
Ask around at car rental agencies. Most of them, including Enterprise Rent-a-Car, have a few 4WD vehicles that they can retrieve with some advance notice. But finding one with a tow hitch will be more difficult (although perhaps not impossible), because most rental companies specifically prohibit towing with a rental car for liability reasons (basically, because people are idiots and will do something wrong in the towing process that damages the rental car). You may have more luck with a rental agency that is aimed at commercial customers, such as Enterprise Rent-a-Truck, Penske, or U-Haul.