Unfortunately, you could get three professional measurements of the square footage, and get three different "accurate" measurements.As for recouping the difference - if $56k is just an extrapolation of the average price per square foot - take that with a grain of salt.  3B/2B and the neighborhood probably do more to establish value than square footage alone.  

So I am  general contractor and as far as negotiating bids I would just say this..You always catch more bees with honey as you would using salt. having said I that it's all about communication..just communicate..i know that if you were to come back to me and tell me that im too high that you had to be a lower on this or that..i would just ask you where do u need to be and let you know hey look..just tell me  where u need to be and if its reasonable then we can work on it...prices are really not always the same.materials cost more or less due to seasons a weather, etc so sometimes there is more room than next..One thing to keep in mind though is the old saying you got what you pay for!!

Hi Todd, I work closely with an agent who specializes in new construction investment properties (mainly in Utah County and Salt Lake county) so I might be able to help. with a few good custom home and . 

Rick,I am not an attorney so take this with a grain of salt.  

So take my opinion with the grain of salt that is it :-)

I'm not an experienced landlord, so take this with a grain of salt. 

It is not the best tool for small properties but is is another tool at your disposal.I'm a newbie, but I have learned to take things with a grain of salt (... and tequila at times).

My only advice would be to take any complaints that come your way with a "grain of salt" as they say.  

Hello everyone, this is Mike from salt lake city, Utah.

Take material on eHow with a grain of salt.