I paid just half of the price on it and have now made 50% appreciation on an unfinished home ..or 100% ROE on what I have actually paid.

Social Media / Paid ads?

At the end of the day, both of these respective vendors/individuals are paid when the deal closes. 

Purchase price: $90,000 Cash invested: $15,000 First home that I over paid for.

And at what nominal price compared to the $24mil they paid in 2019? 

I am expecting to do 3-4 deals per year until I get to 20 properties or so and then snowball the debt so they are all paid off by retirement. 

As already mentioned, you could sell via seller financing to lower AGI, as all you would have to claim is the payment income - until balloon payment received.Did know an investor that had 14 properties paid off and he moved into one every two years to then sell with the $250k single exemption.

(So unless they sell for much more than they paid they will only get a small percent of their down back, especially after selling costs,) but you did say they were getting a discount.

- Usually a 5 unit with a boiler means that all the units share the boiler heating system.Which specific utilities in which units are paid by tenants vs shared?

If not paid by then, go to courthouse in that precint and iniate an eviction suit.