I was going so far as to not get that b4 = before – which maybe says something about the description itself – spell things out clearly?
I am pretty computer savvy; I spend 6 to 8 hours a day at the computer for work and a couple more for fun – had I read that in a post on this board I would have gotten that right away, but reading the mls listing, I was reading to much into it and assumed that b4 = some real estate term I had never heard of.