Yes. In Colorado a trailer would be covered under the auto insurance policy. If you have a fifth wheel or camper I would recommended and insurance policy by itself on it.
Your auto insurance covers the trailer as well so there is no need for travel trailer insurance.
Liability coverage extends from the vehicle that is pulling a trailer, boat, or camper. This means if you are backing up in a parking area and the camper hits another vehicle the liability coverage will cover the damage to the other vehicle. Even if you are going down the road and the trailer comes loose the liability is still attached to the trailer and damage it does to another persons property is covered by liability from the vehicle that it was attached to. The kicker is that damage to the trailer itself is not covered by the vehicle pulling it. You would have to have a policy on the trailer itself for physical damage coverage to cover damage to the trailer.
The property is covered by the owners insurance only. If your trailer hit their property, their own insurance must cover it. If your trailer hits your own building, then your insurance will cover it.
When I bought my new camper, my agent told me that I don't have to insure the trailer for liability because the liability extends from my vehicle policy. Although your situation is different, I'd guess that whatever is pulling the camper is also providing the liability insurance. I'd call your agent.
No, You should contact your insurance agent to obtain insurance for your camper.
Insurance laws vary from state to state so you need to check your policy. Generally speaking, liability coverage extends from the vehicle pulling the trailer but physical damage does not. This means that if you back a trailer of any kind into someone elses vehicle at a gas station your auto insurance will cover the damage done to the other persons vehicle but not damage to the trailer, boat, camper, whatever. You need to purchase a policy for the trailer if you want coverage for it but if you are only concerned with liability you need not buy the extra policy. As a matter of full disclosure, I own and operate a small Independent Insurance Agency in Georgia and have for 22 years. I also was an agent for a direct writer insurance company for 3 years prior.
No, Homeowners insurance is for the house. it does not cover cars or car accident claims.
Any auto insurance company should also cover trailers.
No. A trailer has to have it's own insurance policy.
It's always best to get an additional "rider" on your auto insurance when towing a travel trailer, especially one that you don't own. If you do own such a trailer, you would already have insurance on it and would not need the "rider" attachment.
Depends on your policy. See your insurance agent.