Doorvest claims that they help identify, purchase, and own rental homes for a littles as 35K and help generate cash flow.At the moment, I'm little skeptical but wanted to give it a try and write each steps here (good or bad) and help the community here. 

I just have vacant home insurance along with regular home insurance, but no other professional liability insurance.

I did not read the rules around security deposits. you may be allowed to use those funds and still file a small claims action for any remainder, but I can't imagine that it would be worth it if you have at least one month's rent in security deposit. 

He said they are killing it compared to regular SFR rentals.

We lack the experience of you and your husband, but there are a couple of groups that meet regularly in the area.Impact Lindale is run by Roger Paschal, he is also a member of Bigger Pockets.

The damage claim was in excess of $800,000. 

Realtors often claim they're restricted to Realtor use, but that is incorrect. 

Attending local meetups, analyzing deals regularly, and continuing education would position you for long-term growth.Good luck!

I enjoy the guaranteed rent and higher rents than most regular properties with a "normal" tenant.

I understand this is my responsibility and I filed an insurance claim and the garage is currently being rebuilt as the entire thing was destroyed.