When you can figure out how to scope work, it's just looking up pricing and multiplying it by square footage.

It allows for quicker cheaper pay down of debt and it keeps your equity in the property liquid so you can access it to multiply properties.

Back then we where aiming for 14x rent multipliers (i.e. a 140k property had to bring in 10k in gross rent a year).

@Kyler J Sloan it’s actually a very straight-forward process: just figure out how many gallons the hot tub is, multiply that number by 8.3 to get the weight of the water, then add in the weight of the hot tub itself, determine the average weight of your guests and multiply that by the maximum occupancy of the hot tub, add all that up and multiply by 13 for Justin Case plus Mrs.

They will multiply the agreed upon monthly rent amount by 75% to derive the true rental income (this 75% factors in vacancies and management expenses).

PURCHASEPurchase Price: $ 499,900Amount Financed: - $ 399,920Down Payment: = $ 99,980Purchase Costs: + $ 9,998Rehab Costs: + $ 0Total Cash Needed: = $ 109,978Price Per Square Foot: $ 66.7Price Per Unit: $ 62,488RETURNS & RATIOSCap Rate: 10.7%Cash on Cash: 17.3%Return on Investment: 3.4%Internal Rate of Return: 3.4%Rent to Value: 1.3%Gross Rent Multiplier: 6.5Debt Coverage Ratio: 1.6FINANCINGLoan Type: AmortizingLoan Amount: $ 399,920Loan to Value (LTV): 80%Loan Term: 20 YearsInterest Rate: 6%Loan Payment: $ 2,865 Per Month$ 34,382 Per YearASSUMPTIONSVacancy: 5%Rent Collection: MonthlyAppreciation: 3% Per YearIncome Increase: 2% Per YearExpenses Increase: 2% Per YearSelling Costs: 6% of Sales PriceLand Value: $ 0PURCHASE COSTSTotal (2% of Price): $ 9,998REHAB COSTSTotal: $ 0

I would also add up all the basic needs and add something for extras most people do a 1.5 multiplier on expenses.

You can utilize the BRRRR method to lower your OVERALL costs on the deal, but you'll still need to plunk down some cashola to play.The power play, indeed the massive multiplier effect, would come by house-hacking again. 

Properties with value add possibilities can multiply your returns. 

Then I'd multiply that rate by 1.5x and divide by the number of rooms to get an estimate for each room's rate.