I bet that you can pay off this debt in 1 year or much less.

Costs a lot less to do all pad sites together versus individually. 2.  

Based on my experience coaching investors with my husband, who was a realtor many years ago, I strongly advise that, regardless of whom you work with, you meet the team, conduct thorough market research, get an appraisal, schedule an inspection, and also arrange for a site visit.

Clearing potential building sites.  

Sounds like their combined income likely beats your other tenants.Your gut is probably your best bet and you need to go with it. 

I have been working with my contractor about 23 years now and when we get involved in a project I go to the site at least 4-5 times per week.

When you have a duplex and tenants on both sides stay for ten years, it almost guarantees that something isn't right.I would study your market and determine the value of your rental, because I bet you are losing money every month.

The Midwest is probably your best bet for a number of reasons.

SIH has some marketing gimmick with the Real Estate Guys where they bus unsuspecting retail customers around to the sites to see home being built.

Yes, on hold again as of 12/26, and you can always check the official government site itself:https://fincen.gov/boi