Deal Analysis

[AL Turner]

Hello BP community REI newbie here, I first want to say bigger pockets is awesome, I'm learning a lot.

My question is on analizing  properties, I havent learned how to do this yet. I understand comparing comps but without that and just looking at a property how do you determine if its a good deal?

My situation is this, In my area my subdivision we have $250-$400.000 homes. Right at the end of the division not in the division there is a house that has been vacant for about 2yrs. The house sold for $96 in 2006 built in 1972.  For Sale in 2012 for 109,900, listed for $84,000 1/7/13. $74,000 3/14/13, $69,000-9/16/13. The price keeps changing the listing cost. Currently listed at $81,000 9/29/14. It seems like something good, not in the position to purchse my self, wondering how to proceed.