In my state, and I believe many others, BPOs are only legal if the Broker has an interest in marketing the property. In this vein, our state has legalized BPOs as "appraisals" that do not have to meet USPAP and other appraisal standards. The problem is that banks are using them for all sorts of things, for instance HELOC loans (my HELOC was approved based on a BPO). While it may not be illegal for the bank to make a loan based on a BPO, it is illegal for a broker to perform a BPO in an instance when there is zero chance they will ever get the listing (in my state anyways). As an appraiser, I would not even consider performing a BPO because I am not a broker. I would question the rationale of any appraiser who thinks that's ok, if they are also not a broker. After all, its called a Broker Price Opinion, not Appraiser Price Opinion. Pretty sure USPAP covers this (cant remember where off-hand exactly), but it has to do with not misrepresenting yourself to the client. If I was asked to do a BPO, I would simply say fine, but not on a form that was named BPO, rather on a form that said Appraisal. Not for $50 bucks either. I have no idea how they do it that cheap. I charge more than that just for inspecting the property.