Based on what we know and found out from neighbors, although we don't have any abstract evidence, Tenants were misusing the property to run a Prostitution type of business, massages service etc.

Even after valuing complex assets for over a decade, every day I pickup small nuggets of information that enhance my knowledge while providing perspective. 

Commercial purposes  (trade or business) would be running a massage salon or repairing trucks from it or the like, with associated use of the common property by multiple customers in a business open to the public.The attorney did not feel that AirBNB necessarily went against that. 

Now I am not saying that EDDM, Cold Calling, or other methods aren't useful but there are ways to enhance those methods, reduce waste, and improve your ROI.

My step mom is a massage therapist and she wants to open her own business. 

., I would love to get my knowledge enhanced on that as well.

@Leon LiMostly, What i have is a few questions that may help you decide or enhance the overall structure Lower Rent:Can your business afford a rent decrease still keep cashflowing the property?

Like massages? 

Stain enhances and highlights blemishes.

This can diversify you, lower your overall portfolio risk and enhance overall returns if done correctly.