Depending on the occupancy will determine the amount of down payment needed on the purchase. 

I think @Jeff S. nailed it.If you were determined to buy this I'd give some thought to a small office cluster for therapists/ practioners like counselors, massage therapists etc.

You need to determine a good time line.

In my experience, the insurance adjuster is the one who identifies damage and determines what needs to be repaired/replaced, then the roofer is hired to complete that work.

That is all to be determined for now, but this bill could be the turning of the tide.  

The area will determine the quality of tenant you can obtain. 

Use neighborhoodscout and see what score it has since 2000   If it is an 8 or higher, I will be fairly confident of good long term appreciation  - the cash flow over a long hold is more determined by rent growth than initial cash flow.  

Go to your local REIA and see if there are any subject matter experts in your area that teach classes or give presentations.Even when the statewide statutes are the same, they often get implemented in different ways locally, so the national courses tend to be just junk.If you are determined to spend money on a course see if you can buy off ebay or alibris or FB marketplace.Lots of misinformation on tax lien/deed investing.

Since they are new, case law has yet to determine how they will be handled.

The lender will determine DTI based off the repayment term (How and when they will be repaid.)