If you have a roof with more than one layer of shingles, add about $40-50 per square for demo and haul-away.I'd be willing to bet that on a 1700 square foot house, you're probably looking at 20-25 squares, depending on how many stories and the layout.While it's tough to estimate from the ground, you can try multiplying the length by the depth of the house to get a square footage footprint, and then for a typically pitched roof, add about 40-50%.Though, like others said, get a few bids and you'll quickly learn how to estimate for yourself in the future.

This number is multiplied by the number of sections to give the area per radiator then multiplied by the number of radiators for the total sq footage of steam required.

My best guess would be around 1.6-1.65million using different multipliers for the different properties.  

@CJ Witmer  POH = Park Owned HomesTOH = Tenant Owned HomesYes , cap rate is the multiplier at which an asset trade at.  

Gross Rent Multiplier - 10.98Cap Rate - 8.83% Cash on Cash - 65.66%

If the loan amount in this scenario is $300k, the difference between A and B is $534 (0.433% - 0.255% multiplied by loan amount) plus any difference in fees appearing in Box A of your Loan Estimates. 

But this is the how the numbers run with the property fully rented.Purchase price: $1,600,000Monthly Income: $10,000.00 Monthly Expenses: $7,316.54Monthly Cash Flow: $2,683.46Pro Forma Cap Rate: 6.27%NOI Total: $100,300.00Cash Needed: $490,000.00Cash on Cash ROI: 6.57%  Purchase Cap Rate: 6.27%Property InformationPurchase Price: $1,600,000.00Purchase Closing Costs: $10,000.00Estimated Repair Costs: $0.00Total Cost of Project: $1,610,000.00After Repair Value $1,600,000.00Down Payment: $480,000.00Loan Amount: $1,120,000.00Loan Points: $0.00Loan Fees:Amortized Over: 30 yearsLoan Interest Rate: 4.500%Monthly P&I: $5,674.88Financial ProjectionsTotal Initial Equity: $480,000.00Gross Rent Multiplier: 13.33Income-Expense Ratio (2% Rule): 0.62%Typical Cap Rate: 5.00% Debt Coverage Ratio: 1.47ARV based on Cap Rate: $2,006,000.0050% Rule Cash Flow EstimatesTotal Monthly Income: $10,000.00x50% for Expenses: $5,000.00Monthly Payment/Interest Payment: $5,674.88Total Monthly Cashflow using 50% Rule: -$674.88

They also stop consuming with their own multiplier effect when they don't have enough money to consume.

as well as proximity to downtown work and employment hubs in the outer 'burbs make the location an easy rental.Cash flow on the property is around $250/month, with a rent multiplier of about .85 (using our purchase price from 2011).

There are too many and they are multiplying too quickly.