Real Estate Investors have been able to manipulate and massage that law to benefit them, but I still would contend that you are taking advantage of the system and why it was created.Sure, you will probably get away with it, but it doesn't mean it is morally and ethically appropriate.

One is rented to a Massage Therapy Wellness Lady, and one office is totally empty.

I am a personal trainer, physical therapy technician, and I also help rehab and renovate my family's rentals.

The economy went through "shock therapy." 

Interesting story:https://www.washingtonpost.com/news/animalia/wp/20...

I've received non-audited financials, walked through (but not fully inspected with my team) the property, and am massaging the purchase price in my spreadsheets down to the point to get me a cap rate of 10.

Another thought was to keep one of the units with the walls and just upfit it for a Salon and then rent out each room separately to hair dressers, nail business, massage business, tanning business, etc. 

The owner we know of because they worked with my wife years ago before he opened his own small Physical therapy practice which is still in operation today. reached out to him with a message left at office (general message not the reason) but no call back

There is a difference in a service animal and a "therapy" dog.  

Plus, they wanted a pool (for her physical therapy).