the same state. Your insurance policy will require that the vehicles are garaged in the state it is registered. The premiums are based on the garaged location and where they are most frequently driven. So if you don't live in Montana you can have issues when you have a major claim and attorneys get involved.

I had a case like this in Arizona. An insured had a car registered and insured in Arizona. He actually lived in Nevada and the insurance company sent an inspector to the listed address in Arizona. Turned out to be nothing there. The claim was denied and the reason listed was insurance fraud.

Also, you should have a commercial insurance policy if they are registered in the name of a business.