Be straight to your sale. It's not ethical. Influencing an BPO agent should not be your job. Let it be even profits gets short.
nick, i disagree.
What happens when the BPO agent comes way above what it should be? or what happens when the banks become unrealistic on their required pay off amount even though you've offered 92% above the BPO and it typical that lender takes less? you, the homeowner, and everyone else involved (including the lender) loses.
if you have 5 bpo agents do comps on the same house, you will get 5 different results. this is merely a matter of opinion, just as in the used car business, you can negotiate an purchase price that works for you. based on your negotiating skills will determine the amount of profit you make. (provided your in range of the BPO obvioulsy).
as steelep mentioned, you're only confirming available data. so as a negotiator, you want to use whatever tools you have to your advantage. this is true for any business.
the unethical part comes in when investors stage houses (ie/ cause destruction to the house to get a low BPO).