While this may exempt it from being classified as a rental activity, active participation remains a requirement, necessitating compliance with three tests: spending 500 hours on the property, dedicating at least 100 hours (and more than any other participant), and performing all the necessary work needed.Additionally, long-term viability and consideration of depreciation recapture are important concerns.

As a Landlord who has No Smoking policy, I understand that smoking weed is apart of that but what about Medical Marijuana?

I now require any animals brought onto the property for any length of time, even service and emotional support animals, to be registered with petscreening.com or otherwise verified through a third party, and if tenants or their guests are not happy with that, they can send the documentation directly to me (vaccination records for the animal and a doctor's note with medical license and clinician contact information be sent to me).

Help the claimant with an immediate need - finding medical care, etc.

The benefits  to us have been: fed tax credits, property tax exemption, lower electric bill by a whopping 85%.

What digging I've done has been in valuing professional services practices (same issue: owner does the "labor", has client loyalty, etc.) as well as medical practices (patients loyal to a doctor more than a physical address).  

See medical/nutrional/fitness professionals, do a biometric screen, and log everything in MyFitnessPal. 

If you lived in the house long enough to be considered Primary residence you may have a Sec 121 exemption.

If you do not have a lot of personal assets and have a homestead exemption on your primary residence - most find there is not much left for someone to actually take.

Lets call that the :( side.2) And there is the happy side... passive income (syndications, passive partnerships ie medical/dentist offices) and passive losses (depreciation, bonus depreciation via cost segregations common in syndications).