Mildew also has a very distinct musty smell.

That’s an important distinction to make.

Massachusetts does make a distinction between fixed term and long term leases.

Commercial properties may have different zoning, tax, and regulatory requirements than single-family homes, making them distinct from residential properties in terms of classification and usage.Hope this helps.Good luck.

That framework distinction interests me personally and then allowed me to explore what I hope to set up, which is a "mother" LLC that can then be a member of other LLC's, VS you being the member. 

That’s an important distinction because one is very passive and the other not so much.

I believe there is significant distinction between two types of medium term rentals.  

I was hoping this was different than 2008, I do believe so as it appears that the factors contributing to the shift in Las Vegas that you outlined in your message are distinct from the housing bubble in the late 2000s.

I draw this distinction because many of the issues you will encounter with Section 8 tenants are common across lower income real estate investing in general.

The valuation and market value of a multi family property differs from a single family and you want someone that understands the distinctions if you go that route.