Technically, we aren't required to have any insurance, so the type of insurance one is interested is really a matter of personal preference and perception of risk.

I did get the impression from talking to TD that it would have been very easy not to mention the renting situation. It was a question I brought up; otherwise they seem to assume ownership. To me, that doesn't put me at ease though. If something were to happen, it would in all likelihood become clear and negate coverage. Same goes for passing as an occasional babysitter.

My goal here isn't the cheapest rates, but the most full coverage and protection and (important) knowing the exclusions while being transparent about what I am doing.

Thanks everyone for your suggestions. They have been helpful.