All you have to do is develop your own investment model (Inputs, Actions and Outputs) based on what makes you feel comfortable. 

All my deals there just involved paying back dues to close while the owner was in possession but being threatened.

Momentum is gaining and this model is proving successful for me.

Not sure if this model works today but it worked then.

They use those in models homes a lot here in southern California Wood look Ceramic tile it comes in all different colors.

Niche model would be student housing since we some of the top colleges in RI from Brown University, Rhode Island college and Providence College and many other ones not listed.   

But the REI that practices the buy and hold model will do well, and rental rates will go up.

Offering assets that they do not control or possess agency for?  

Does anyone know of any models of group living for women/children? 

Here's where  energy modeling and rating systems like the Dept of Energy Home Score helps with marketing and can lessen sticker shock in any state: Imagine there are two homes for sale that are pretty identical in size, location, year built etc.