Factor in carrying costs (utilities, taxes, insurance).2.

How bad is the insurance, how high are the property taxes, is there an Hoa, etc etc. 

Do that every 2+ years, sell tax free, repeat, and you can be set for life ("live in flips"). 

Monthly housing cost less (due to tenants paying rents in the other units)2.

When paying them , in our contract should we put that we will be paying them out of “rental value “ , “rent due” or “rent collected”

Being a Section8 HUD building, there was an immense amount of paperwork and due diligence that was required.

The mortgage has gotten out of hand due to property tax increases, miscalculated escrow, and an increase in my interest rate from an initial buy down, increasing from $2600/mo to $3200/mo.

The bank statements has deposit showing gross pay from the pay stub and not the net pay after taxes.

I have a lot of colleagues with multis in Philly and all are doing well because of low taxes and high reliability, but it has its challenges.

Nice, but confusing.Our situation: FICA for kids turning 18 while working for us.So, the only thing we can conclude so far is that the age definitions in the tax law are wildly inconsistent and unclear.