@Andrew Martherus: MLS allows us agents to search, so that’s probably the best way.

It will pay for things like subscriptions, software, administrative, travel, etc. 

well, I will be heavily traveling for those 3 months and I am able to command a pretty decent profit on the rental, and I can use the spare cash ;) (great tenants - 760+ credit score, 4x income etc.). 

After I closed operations and took a year off to travel the country and go rockclimbing and alpine mountaineering (I guess I needed More adrenaline rush), I was hired by Marcus & Millichap one of the largest commercial brokerage companies in the country.

Do some research among other active hosts in your area and see what they think about your house as short term or moderate term, e.g. corporate rental or travel nurses.  

They travel lot and wont buy for sure.

We replaced roofs, refinished the interiors, repaired staircases to top units in order to make them safe for usage - they were in horrible + unsafe condition upon purchase.

There are a variety of trust formats, with specific advantages and disadvantages based on geography and usage.

I work a full-time job, my wife is a travel agent and works from home. 

Just leaving lights on won't do it either.This is fire that's not worth playing with.What if you travel a lot?