My total cost to purchase and gut renovate the 3 bed 1 bath rowhome was 110K. 

An investor told me there that I would need to buy 3 bed houses at $15,000 then add $10,000 to make any money.  

I plan to hold for at least 5 years.This is an early-1900s home with three identical 2 Bed/1 Bath units.

I even got a little help with the masking from Sage.Putting the last coat of finish on the hallway before bed.

I currently have a single family home (4 bed 21/2 bath) and the first part of the house hacking strategy would be to rent this house out and then go and purchase a multifamily property to live rent free in and therefore save up more cash.

Factors include: neighborhood, size, amenities, school districts, age of home, SF, number of beds/baths, and all kinds of other features that may be unique to your area (pools in Florida, for example). 

I have contacts in my investing group who are connected to manufacturers of modular homes - not "manufactured" (trailers), modular: homes are stick-built in pieces in a factory, the pieces are shipped to the home site on flat bed trucks and assembled onto the foundation.

Our first purchase was an owner financed deal with 2 commercial spaces (both rented) and basically a blank slate building that we are turning into a 4 bed/2 bath house.  

Just give them the details of the property, beds, bath, garage, exterior, age of roof, as much as you can, your asking price, whether seller or buyer pays closing, and the rest is on their end. 

Las Cruces, NM 88005This a 4-plex, with 4 2-bed, 1-bath units.The price is 174k.The last unit putting in rent was listed for $375/mo (that looks a little bit low but it is probably normal for LC).