This self claimed "Drug Addict to CEO" doesn't pass the sniff test in my opinion.

If you divide that amount into the capital gains tax savings, you'll get a number of months you'll have to own your current home to make the interest savings exceed the capital gains savings.

Not the cheapest 25% or the most expensive 25% but I’m the middle, where people want to and can afford to live. 

Congratulations on the duplex. 

Theoretically all the condos have the amenities, not just yours.

- what are the chances you will get them sued?

Maybe there's an angle for seller financing or some other creative approach to get the seller the total return they want over time, but it's hard to say without actual facts and data.

At every point in history of the 15+ years of the site I've noticed the old timers complaining that the site is the worst it's ever been. 

Then you can negotiate with the seller from there, but NEVER go over your $20,000 MAO based on the numbers in the above example.The price you will sell your deal to a cash buyer for is the ARV times 70% minus the repairs.

What does the 50% rule show the cash flow.