house: 459,000
20% down: 92,000
mortgage: 368,000
monthly payment: 2354.49 @6%, 25 years,
monthly property tax: 463.67 @ 459,000 city assessment for 2007, 4% more for 2008
monthly rental: 3600 @900 each for 4 unit
gross monthly income: 781.84 or 65674.56 in 7 years.
This house must be in perfect condition, no maintenance, never need repair, never need to find a tenant.