The problem with these projects is usually not enough money (especially when the unforeseen issue arises) and inability to refinance (or refinance with good terms).

Birdville ISD is hugely popular for renters too.

I live in a New Hampshire lake town, so small camp-like houses are very popular around here.

ADU's are becoming popular everyone and is a great source for increased returns should you city allow it

Hello,I’m looking for any tools or strategies to give me a good idea of how popular renting apartments, Multi families, or townhouses is in a specific area?

Rent by the room, or find a property with a separate living space, and live free while your tenants pay your mortgage.As far as neighborhoods, NW Denver is increasingly popular for young singles and families and has good access to the mountains.

Below are some examples (with a lot of assumptions included) of several of the most popular cities in the state.

As for whether this strategy is common, here at Bigger Pockets it's probably the most popular strategy recommended (click on the magnifying glass 'Search'. 

Lockouts were a popular idea in Denver for a while and really opens up the number of properties you can consider.

When looking for rental comps, I would look at whatever rental platform is most popular in your area.