When there is only so much land in an area the county or city tends to relax zoning to allow higher density levels over time.

You can also check meetup.com or search Facebook for real estate investment groups, clubs, or meetings in your area.

If you're not present to let them in (or have the space occupied for whatever reason, etc.), they should be notifying you and you may have to face any repercussions (penalties, pauses on your permits, etc.) 

I am in an interesting situation where I am in need of money to finish renovations on my primary residence.

This single-family property, acquired in June, is a key piece of a visionary development in Morganton.

As for MTR in the winter, depends on the market. 

Is there a best-practice on how to do this or can you share pointers from experience?

Quote from @Ariel Nixon: I recently purchased a triplex in Buffalo, NY.

Plus, you do also put yourself in a position that makes you more liable for a lawsuit if you self manage.  

That is the best site, super cost effective, for finding the best MTR guests.