Any advice or opinion will be great as I'm totally newbie for real estate industry, also this country.

So $0 income total.

We plan to close on our units mid-April - 6 in total.

No loans of any kind involved so activities such as the following one are definitely NOT possible for me: step 1: get a loan, step 2: buy a RE where i can be as sure as possible i will get people to rent it and pay the monthly rent fees (plus utility bill fees) matching in total at least monthly cost of loan, step 3: before fully paying off the loan, announcing (why?

Total BS.

@Joe Morelli you have some elements here correct but lets review the numbers a little:The FHA 203k loan will lend 96.5% (or 3.5% down) of the purchase price + renovations.So if you buy for $130,000 and your renovation is $50,000, then your total price is $180,000. 

(but make it a sub-account of the property so that the expenses to fix up the property will be added to the total cost of the property in the fixed asset account of QuickBooks). 

Understand the fees involved and calculate the total cost for an entire year of management so you can compare the different managers.

Buy price, $75KRehab costs, $20KClosing $2.5KTotal is $97.5K Rent could be $925Cash flow is $333.45 COC ROI is 10.67%Total cash needed based on rehab estimate and such is $37,500.

Amounts shown are Monthly.Mortgage = $245.85Taxes = $160.17Insurance = $75.82Water = $200.00Total = $681.84Fixed Expenses that I know I have to pay every month total to $681.84.