Bob, just giving my opinion. I don't think I've ever had anybody ask for a (5) bedroom home, or at least say it was a problem with only (4) bedrooms. A house with (4) bedrooms and a bonus room is more marketable and more useable in my opinion. There are many things you can do with a loft or a bonus room. Not that much you can do with a bedroom. I would have answered differently if it was between 3 and 4 bedrooms but IMO a 5 bedroom home is overkill in that area. Especially considering that builders are building more 3 bedroom homes than before. I wouldn't add a fifth bedroom unless I had a specific need for it. I guess the only thing that would sway me is understand exactly how the buyer is "converting" the living room to a bedroom. Come to think of it, that means (2) bedrooms down and (2) up. Well, (3) bedrooms up is the norm....so maybe it's not such a bad idea.