It is a civil matter, not zoning or criminal.You are building multiple inherent conflicts with yourself in these posts.

Check the property, nothing seemed stolen or damaged but she made a run for it in her car.

I would not be good at either of those, but that's probably where I would start researching if I had your skill set.Folks have been talking about 3d printers.  3d printed materials are inherently weaker than conventional methods.  

Brown in her complaint does not identify any allegation that refutes that funding was unavailable.

In her message, she said that she will return the house to me as it was when she received it and that I can keep the security deposit. 

You make a compelling point about the terminology and inherent considerations in commercial mortgages, particularly for assisted living facilities.

I invest in here Columbus, Ohio.

She just swore for 30 minutes when I had two workers in her unit.

@Yashar Fred I have had several Section 8 tenants in my San Antonio rentals (SAHA, HABC) and my experience is that while bad tenants exist, being Section 8 does not make them inherently bad.  

Sale-Leasebacks have inherent challenges because the tenant/seller is incentivized to market the property in such a way they get they price they want, but if the entity who signs the lease is weak and there's no personal guarantor, they could stop paying rent the day after you close leaving you high and dry with very little legal remedy.I don't know your market, but in my eyes, any 10% cap offering is either an extremely weak tenant OR a tenant that has very little term remaining with no plans to renew.If I were, you I would very seriously consider how much I like the real estate and what my odds would be of refilling the real estate with the same or better rent and/or a better credit tenant once this tenant goes belly up.