Buffalo is one of the most popular markets people contribute to on Devmap.io!

I know the REI meet ups are popular and I have attend the one in Frederick last month. 

Finding a university hospital is another popular letting market that can command slightly higher rents and very stable tenants that work a lot so less wear and tear on the property is seen.If I were looking for an investment from a distance I might be inclined to look for a family BTL over a student house as the management and maintenance is often more simplified.

Primarily a specialty market I assume for those environmentally obsessed renters.It's a interesting concept but not really popular enough to generate higher returns at this time I would think based on higher initial costs to build.

My wife is from Canton and that area has started to get a little more popular.  

@Nick Cucci Indianapolis is an extremely popular investment market due to the affordable prices and cash flow it offers.

I called a popular Property Management company in the Twin Cities (Renter's Warehouse) to use as a comparison to me self managing and doing all of the work.  

Contrary to popular belief, lawyers don't know everything.  

one of the most popular one is the cash flow calculator that j Scott created.  

It seems that direct mail is the most popular way for wholesalers to find deals.