yes
Your liability coverages should apply, if you feel you need more coverage when you are renting a car then when you are in your own car I would go ahead. Usually their insurance is not necessary, I would verify this with your agent though.
Automobile Liability insurance, YES. Liability insurance, NO. There are many kinds of liability insurance.
If you have liability for an accident, you will need to contact your insurance company. If you do not have liability insurance, you may need to pay for the accident out of pocket.
First, if you have comprehensive and collision coverage on your own vehicle then check with your own insurance carrier to see if that will automatically extend to the vehicle you will be renting (as that would save you a lot of money). If it does not extend (and you have liability insurance) then you will need to get the rental company's property damage insurance (sometimes called collision damage waiver).
Since your regular car insurance will probably not cover it, you will most likely need to purchase insurance from whomever you are renting the moving truck with.
Your need Professional Liability
The company you are renting the bus from should have the insurance. You do not need to purchase insurance from a separate company.
You need a commercial general liability policy.
Renters insurance is a necessity for anyone renting or subletting a home or apartment. Whether you live in a single family home, duplex, town home, condo, loft, studio or apartment, you need to have renters insurance to protect your belongings and your liability.
The organization (in this case a church) that hosts a craft show, or similar event that has a general liability policy covers only that organization in the event of a liability claim. If an incident occurs where the particiapant (person using the table and chairs provided) is partly or wholly responsible for someone elses injury, the injured party may sue the organization (in this case the church) and you as an individual. The churches policy covers the church, but not you. Lets say there is a judgment of $100,000 and it is determined that you are half responsible and the church is half responsible. Lets also say the church has $1,000,000 limit of liability coverage. The injured party is going to look to the church for $50,000 and then to you for $50,000. The fact that the church's policy limits are more than enough to cover the whole claim is not relevent. Yes, you need your own liability insurance
You Need General Liability Insurance.
There are many types of insurance you will need to own and operate your barbershop. The most important insurance will be liability insurance. Liability insurance will protect you in the event someone is injured on your property.