looking for someone to help me to analyze a property next door???

[Antonio Smiley]

The  property  next door to me is going up for sell next month and pending condition it can be a real good flip in the area where i live but it will need (some work)..lol. im trying to find a good price to offer before it goes to market. i have first dibs but not sure how to analyze it for a flip. Area price 300k to 350k and after speaking with them an offer of 250 would just about guarantee me the purchase but is it too much?.. Need help Asap!!!!