From that, subtract the P&I part of your payment.

Many landlords subtract the unpaid late fees out of the rent the tenant settles with because it is so hard to take the late fees out of the security deposit.

Check your lease, but it sounds like the owner is giving appropriate notice about terminating the lease, and the requests for access.You absolutely should get your secuirty deposit back, unless there are damages that are subtracted from it.

The mistake you made in your calculation was subtracting the taxes and insurance from the NOI.

Have to give or subtract for ammenities.

.@ 3,000/mo * 50% = $1,500/mo * 12 mo/yr = $18,000 NOIFrom that, subtract your "mortgage payment" to get your cash flow for the year.Divide your cash flow by your investment ($100k) to get your Cash on Cash return.To me, that's one of the most important numbers to optimize as I am looking to maximize the return on my resources.

TBer pays 3% at move in, and may pay a monthly option payment, both subtracted from purchase price when and IF they buy.

So when the new roof/furnace, or other calamity occurs down the road, they will convince themselves that this is a "one-off" and in their own mind will not record a 'subtraction' from the return they are getting.

Subtract 5%, add 5% and see how the numbers work.

But it would be good for you to know.If you have been by the property, I would subtract any repair estimates from the $30k number as a basis of offer.