Not knowing the exact paperwork you got when you bought the property with the owner financing it would be a little difficult to fully advise.

.$800x3=$2400-HOA$1350-mortgage$900=$150$1200x3=$3600-HOA$1350-mortgage$900=$1350I have difficulty seeing the benefit against the risk to my primary residence and to be honest scaling up would be difficult as I would loose money if units were not rented.Option 2 is a duplex property which would only scale slightly over time with upgrades.$2000-insurance/yard$525-mortgage$900=$575Option 3 would be to find a 3 unit building that could make between $1875 per month after all expenses and mortgage and scale to $3075.00 with upgrades.Of course option 3 is sounding better but finding a 3 unit building at my price is not going to be easy.The 1% rule is becoming clouded when factoring in the cost of the home refinance.Please provide feedback on my way of thinking.

I make the distinction because the bigger guys don't want the medium ones as they are more difficult to manage from afar because they don't support a dedicated on-site manager and handyman. 2.

I know this is difficult to visualize without seeing the house. 

Very difficult to get owners to sell on first approach.

If you like your plumber and the tenant is being difficult then you should step in the middle to help coordinate. 

@Erick CaffarelloA few national banks and many regional or local ones are offering HELOC on investment properties.It become more difficult if your properties are not owned in your name, or if the LLC is not a disregarded one.

I would let him know that it would certainly be a shame to be forced to take him to court or send this to collections; both of which will make it more difficult for him to find another place to live.

And if you choose the DIY method, rather than outsourcing management, do you find it difficult to scale?

Just having a difficult time getting started.