You might try searching "due on sale" in Biggerpockets and reading more about the subject.

Hello John, Thank you for your reply, yes two of the comps are on the same street and a third is on a similar street 1 mile south and with frontage on them as well, but with this in mind what would you consider an adequate discount for a busy street property If I were not able to find any recent sale comps (I keep the comps within sales of last 3 months, 200 to 300 sq ft of the subject property and like built properties). 

You're thinking of a purchase Subject To the existing financing. 

I'm currently reading "The Book on Flipping Houses"  and just trying suck up as much knowledge as I can on the subject.  

If you are curious about any particular topics, I'd search the forums to see if anyone has started a thread about the subject already. 

You've received some good answers on your subject property already.

When the price is too high relative to repairs, but still below market, your best bet may be a subject to / wrap to take over ownership on terms with no money down.

Instead of doing a subject to since he wants the money now.

UDFI (debt financed income) will ultimately be subject to UBIT when making leveraged IRA investments.

Hi I'm starting to move into subject to investing.