It would cost me more than my car is worth with this kind of coverage because of my age and an incident on my driving record a few years ago.

The deal on Tom White provides a comprehensive answer.The Tom White property was a vacant house that I’d passed everyday for almost two years.

If you are considering going without Liability coverage I would recommend against it. 

If you do not have someone you have done business with that you know and trust to get you a comprehensive bid that is turn key complete...well, going with the cheapest bid in hopes of salvaging a nonexistent profit will have only one outcome I assure you. 

Its not worth the set up, maintenance and licensing costs to have one, adequate insurance is more than sufficient for liability coverage.

Interior coverage under a personal policy is $450. 

The bigger pockets calculators are pretty comprehensive.  

Look into umbrella insurance, this would be in addition to your insurance on any and all properties, which would need at least $300k of liability coverage each, then the umbrella insurance covers beyond that for all personal liabilities (auto, home, etc) as well as multiple properties.  

(RealQuestpro street rate is $275/mo for nationwide coverage and via ownersdata it's only $100/mo.

., if you have an umbrella policy that is at least $1MM coverage, which is pretty good.