I try to help or at least be civil to everyone, you never know, but I do know most aren't cut out to make it in RE, usually it's an attitude issue, but I know some can't add 6 numbers with 6 digits and multiply the result by 12.

I assumed I could just multiply the interest rate to the loan amount and divide by the length of the mortgage.

Yah organization is a force multiplier when you have multiple tenants.

In other words, remove all other issues from the equation.Here is the proposed concept:1.Calculate the amount of additional monthly rental income that would be needed to achieve the desired COC return and total ROI.2.Multiply this monthly amount by a suitable number of years (say 5?).

Thank you @Maurice MillerThe information you provided is very helpful.Is there a standard multiplier that is used to come with value of a website?

Multiply by the rent for the unit, not by the tenant's portion of the rent after subsidy.

If the project was 200K, the interest rate was 10%, and we had the loan for 60 days - I would owe him $20,000/12 months = $1666.66/mo and multiply that by 2 months which would be $3,333.

Can I just add the 2010 & 2011 improvements to the cost basis, multiply that amount by 50%, and report on line 19h?

Over time you debt will get paid back with your tenant's cheaper dollars and your money will multiply much faster than an all cash purchase.

I have national labor multipliers that I use in commercial construction estimating.