I would appreciate if someone could run my numbers to make sure I'm adding/subtracting everything the right way.

Best way to value land is using the land residual method, which estimates the selling price of the property as completed, subtracts out your building cost and desired profit and all closing costs, and what you're left with is the maximum amount of money you should pay for the land.

Then, I'd subtract the cost of demolishing and removing those other buildings.

The property is listed for $180,000.Down payment: 10% (18,000)P&I: $880Insurance/Tax:$400 So that's around ~ -$1,300 now if i subtract $1,300 from $2,700 thats $1,400 in positive income.

Are you asking if you adding and subtracting is correct?

Subtract out all the other expenses and you get about $3500 a month cash flow out of an aging duplex in a not so good part of town.

Ok so im just look at apartment buildings, here lookFinancial Information * Tax: $8,747.69 * Tax Year: 20 * Total Monthly Income: $5,030 * Total Annual Income: $61,860 * Gross Rental Income: $56,160 * Gross Rent Multiplier: 12 * Net Operating Income: $47,140 * Annual Parking Income: $2,700 * Annual Laundry Income: $3,000Expense Information * Total Annual: $13,820 * Total Annual Year: 20 * Electricity: $581 * Fuel: $2,140 * Insurance: $1,371 * Water: $980Ok Net Operating Income is $47,140 does that mean i still have to still subtract the PITI and Expense from it?

Estimate what the house would be worth without that "addition", subtract demo/clean up costs, then offer that amount.

Section 8 figures the FMR based on all utilities included, and subtracts the expected utility cost from the rents they'll pay when some utilities are not included.

. $100,000+$5,000 +$20,000 =$130,000 subtracted from$212,000 - $10,000= $202,000 and I arrive at $72,000 (This calculaiton does not take into consideration any deprecaition) Does that sound right, at least in crude terms?