We even hire a call center to handle tenant request and route repairs.

These areas are very rural thought, likely from northern PR (Arecibo), PR-10 towards the center of PR (Utuado) and the like (San Sebastian/Lares).  

But the story will center around juggling the responsibilities of parenting with the demands of real estate investing and management. 

This is massive and here to stay. 75% of the world population will be living in the city centers by 2050 - not suburbia.

My home is about 15-25 mins away from convention centers and downtown attractions.

What other profit centers am I missing?

As far as areas: doesn't really matter too much to me as long as it's close to a train line so I can get to the Daley Center (clark/lake stop on blue/green/purple, Merchandise mart on brown, lake stop on Red).  

Clear Lake, Kemah (I almost bought a strip center there 20 years ago...it would be worth a LOT today).Many states do not allow locks to be changed.

Being further inland than many of our coastal communities, many people (like @Judy Tagert above mentioned) don't realize that huge swaths of Pinellas Park are in fact in Special Flood Hazard Areas:The official source of these is the FEMA flood map service center, where you can pull up individual flood panels.

There may be some areas that will suffer less than others -- the suburbs, rural areas, major employment centers with comparatively sane real estate costs (Austin, research triangle, Salt Lake City, Denver).