Not for the faint of heart ti manage themselves. i recently helped a client purchase a JEWEL, that he will be out of for under 35k and will have aection 8 tenants beating him up to hand him their 3 bed vouchers. (1400 a month)....do the math.

You'd just have to do the math for the various scenarios

You do the math and you have a negative cash flow of 250/mo with even considering vacancy out of equation (assuming 0% vacancy).

My math that is $1.43mm to develop and $403k to puchase the lots.  

If the spread for the fix and flip investor is 45k not counting holding costs, closing costs, and anything you might not have factored into the above math.

The math does not make sense.

Have you done the math to make sure that the rent is sufficient to pay for a mortgage along with misc expenses if you were to buy the property yourself (using a 3rd party lender)?

FWIW, we always send each unit a copy of the building's full water bill plus a brief paragraph explaining the math involved in calculating their share.

Nail your PPC budget based on the math: We've got a simple equation we teach our clients to figure out your target MAX cost per lead and your target PPC investment per deal... and use that to guide your PPC strategy.

My user name is Climer School and we have 12 free real estate math videos posted in a playlist.