Airbnb....and 100's of other vaca rental websites have turned vaca rentals into a booming underground economy at the expense of long-term tenants...Our comprehensive suite of CCPA/GDRP/PIPEDA compliant and battle tested solutions give local governments the tools..."

I would try reaching out to a mortgage broker (versus a straight up bank)... they usually have more lenders to pick from... you can't be the first one to have this issue, and somewhere is going to have a solution for you.  

Assuming that you are going to be setting up a C Corp anyway because most tech startups are setup this way if they are going to have a large number of shareholders, the ROBS solution sounds appealing, until you get into the details. 

Foreclosures:https://www.attomdata.com/news/market-trends/foreclosures/attom-data-solutions-may-2020-u-s-foreclosure-activity/Evictionshttps://www.cnn.com/2020/06/20/success/evictions-moratoriums/index.htmlMortgage Forbearancehttps://www.housingwire.com/articles/8-8-of-u-s-mortgages-are-in-forbearance/

By far the easiest solution to your problem is to have someone (usually a parent) co-sign on your mortgage.

This is a nice short term solution for me and for my seller.    

We decided to ask her about moving into one of our renovated rentals on a month to month basis until she could find a permanent solution.

You can work with companies that offer a turnkey solution of purchase, selling, property management, rehab management, and has strong long-term relationships with service providers like insurance, lenders, and contractors.

But it is likely the most viable solution in your situation.

Time is my most valuable asset, want to have a casual meeting monthly where we discuss pain points and solutions.