If they continue smoking, you'll have to put up with it until their lease is over.In the future, make it clear that smoking of any substance is forbidden inside any structure, including garages, storage sheds, etc.

I started in SFR, then bought an 8 plex and have just continued to get bigger since then.

Ultimately, adopting an investor mindset means being proactive, staying informed, and continuously seeking knowledge to make informed decisions.

Market Analysis: Continuously monitor new and emerging markets.

As well as continuing education requirements annually. 

Based on all the facts and circumstances, you participated in the activity on a regular, continuous, and substantial basis during the year.

I continue to market my home by touring rehab/IOP centers along with giving house tours to said facilities.

Glitches do come up and as we continue to grow our portfolio it will eventually become too cumbersome to maintain.

I'll continue my search.

Rents will continue to rise year over year if you keep up with your property and if you hold onto the multi long enough you will eventually cashflow once you decide to leave.