That price is derived via the comps that have sold for similar houses.

It is an old house as new laws /coded are derived, old house is getting out of sync.

The only thing you can do is decide if you care or not.So going back to one of Tim's points, yes, math impacts your investment, no matter what order of derivative you're talking about. 

The health income is essential and is derived from leveraging your cash with 30 year mortgages.  

Plus, it's a pride thing...they don't want to "give it away" even if they have no use for the property nor derive income from it.

It is derived by dividing the NOI (Net Operating Income - income minus expenses) by the sales price. 

The income approach, or running a 5-10 year model and targeting appropriate IRR and Cash on Cash return metrics should be the way you the investor derives their ultimate value, but other parties have different goals, thus the other approaches' importance.The Sales approach matters, one needn't overpay for a building if the market is lower than their required returns, right?

Also FHA has the highest debt ratio allowed at 56.9% and FHA will also count your rents from the other units, helping your debt ratio.Fannie Mae and Freddie Mac will also count income at 1 year showing on a tax return but their debt ratio max. is 50%There are several programs in Non-QM loans, such as 12/24 month bank statement programs. you can also do a Asset depletion program that takes any liquid assets you have, divides it by 60 months to derive your monthly income.

URL: https://www.huduser.gov/portal...For 5+ bedrooms or SRO, while you should verify this with your local housing authority, this should be pretty accurate to do your own calculation based on the above data set:"HUD derives FMRs for units with more than four bedrooms by adding 15 percent to the four-bedroom FMR for each extra bedroom.

If all of your income is derived from the same type of activity, they are the same type of income stream, just coming from more than one origin of payment.