In Ohio, the state minimum liability requirements are 25/50/25 — comprehensive and collision are optional. If you're looking for the lowest coverage and the cheapest rate, that's the best option though this decision is completely up to you and what you're comfortable paying.
Hello, You will have to have the policy in your name since you are the owner of the car. You will also need to list any person(s) that will be driving the vehicle regularly (more than once a month) as a driver on the policy.
Yes, you should be insured while driving in a parade under the mentioned circumstances. Many people who drive in parades tend to have classic or modified vehicles which often require different types of insurance coverage.
I certainly understand your concern, but you cannot get a renters policy for an Airbnb you are temporarily residing in. If you have a renters policy for your current address, your liability coverage will cover any damage you cause to the Airbnb (up to your liability limit).