If my math is right you could almost double a properties income potential by adding an Accessory dwelling unit which will probably cost less than 10-20% of the initial home purchase price.Example:SFH purchase: $400,000 renting at around $2,100-2,500 (after about $5,000 updating)Garage Conversion: 25,000-100,000 (maybe less if I can find one with a bathroom next to the garage)1 bedroom renting near Fairfield CA: $1500 monthA lot of these numbers are idealized but this could bring the Property near to the 1% rule.400,000+25,000+5,000 = 430,000(2500+1500)/430,000 = .93%Now if we get this to work and we take it a step further and add a second ADU to the backyard for 100,000-200,000 we could add a 2 bedroom and add more incometotal cost: 430,000 + 150,000 = 580,000rent for 2 bedroom: 2,000Total income: 6,0006,000 / 580,000 = 1.03 %Do these number look relatively reasonable to anyone that has more experience with adding adu's in California?

@Dakota MivshekI hear the same thing as @Lia Martinez about Accessory Dwelling Units (ADUs) in Denver ... that they're not a wise investment.

The ADU (Accessory Dwelling Unit) described by Chace Fraser, could also be a Tandem House. 

Another great option in Tampa is to find a house with an ADU (Accessory Dwelling Unit) or MIL suite you can live in while renting out the main house to cover your mortgage.Feel free to reach out if you ever want to discuss options or just dialogue about strategy that fits your unique situation.- Alton

I am seeeriouuuusly challenged when it comes to any and all types of decorating, choosing paint colors, accessories, everything. 

In regards to financing, I’m just unsure if FHA has restrictions against Accessory Dwelling Units (ADU) attached to an FHA financed 4plex.

I stumbled across this thread the other day and I think the original poster hits it spot on as far as being a buyer that is remembered or coveted. https://www.biggerpockets.com/forums/712/topics/437139-why-so-hard-to-find-wholesalers-in-las-vegas?

An alternative would be to find a single-family home with enough square-footage to do a permitted accessory dwelling unit (ADU).

They consider a basement in a house with a kitchen with a stove and a bathroom with a shower an accessory apartment which is what this house has.

@Laura Blair - for the rocket lawyer contract template, searching for the term "ADU" or "accessory dwelling unit" doesn't seem to yield results.