The way I've valued multifamily properties is to calculate the Net Operating Income (Gross Income - Expenses) and then divide by desired cap rate.  

@Leslie Beia As @Travis Biziorek stated, flipping in Detroit is a bit different then many other areas of the country - but, that means there's plenty of opportunitues!

In 3 years i can get a loan because then i have a job and show the bank that i receive x amount a month but now i am a little bit stuck.

If not then you can during inspections.

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

I lived in it the first 2 years then had to move for work.

The Real Estate “Market” will rise till 2022-2024 or so, THEN SELL ALL…

Then you should also understand that that price is variable.

If it gives one investor an unrecognized opportunity then great. 

That strategy lets you make chunks of cash on each flip, which also gives you cash to buy your next flip, and then eventually you have enough money to buy a long term hold you can rent out for more passive income than flips.