I'd build at least 3 units. the DSCR loans we underwrite get 1.6 debt coverage and because we build under 4 units they have so many exit strategies depending on which appraisal method goes for more. 

I agree that it would probably be the easiest to buy an existing duplex or house that has ability to be split or easily added onto.

The easiest way would be to look up the permit history for the new construction. 

There are tools that can be used to help determine ARV, but perhaps the easiest is to obtain a value from a realtor.  

As others have suggested, C4K is easiest.

In 2019, I utilized the BRRRR method to purchase a home, starting by **Buying** a distressed property at a low price.

Method?

This method allows you to set terms that not only cover your existing mortgage payments but also provide additional cash flow each month.

Find Brandon's videos on YouTube for the "four square" method of analyzing homes and practice.

Hardwood floors are by far the least expensive and easiest to maintain between tenants.