They are just regular SFH without any real community features.

You should research the specific market, competition, potential over-saturation, what can help you stand out etc.Generating great Airbnb returns stems from having a unique property, marketing it well, and operating it efficiently.

@Neil Evangelista, while Nest is expensive, there are manufacturers who sell at Home Depot and Lowes between $100-$150 and you can sometimes find it cheaper online.I also like the emergence of smart devices like smart vents from Keen, which was featured on SharkTank and sold at Lowes, which integrate with Nest.

Once you switch to Google Project Fi (cellular service) on this number, you will lose all the "cool" features that you are likely to need as a real estate agent. 

Alternately you can go to a company like B2R finance that specifically does this sort of activity.Your loans are likely to have a higher interest rate than a conventional mortgage and also likely have a 5 year balloon or adjust feature. 

@Kenneth Cisneros Mail can be effective for finding the off-market leads - especially if you have a day job.The key will be getting a unique list - not one that every other investor is mailing to.

The research that I've read on AirBnB and STRs is that people will pay more to stay in a unique place.

On the flip side, if it's really only a few changes they made in the interior to accommodate a handicap, it could be better to reverse those changes, just the major ones, as handrails and smaller adjustments are great safety features for anyone. 

I do have a unique situation due to my job.

There is a specific forum category dedicated to this topic:https://www.biggerpockets.com/forums/51-tax-legal-...I would recommend that you start by reading some relevant discussions (use BiggerPickets search feature) so that you can educate yourself.