What would you do - unreasonable broker demands

We recently saw a coop for sale (without a buyer's broker)and made an offer via email. The offer included a pre-qual letter from a well-known mortgage broker, and our attorney's info (she's also well-known and has done many deals in this building) In response, the broker sent us a very detailed financial disclosure form he claims he "needs". This is the type of info we'd expect to give the coop,... [more]

We recently saw a coop for sale (without a buyer's broker)and made an offer via email. The offer included a pre-qual letter from a well-known mortgage broker, and our attorney's info (she's also well-known and has done many deals in this building) In response, the broker sent us a very detailed financial disclosure form he claims he "needs". This is the type of info we'd expect to give the coop, but not a broker at the time of first offer. Our lawyer recommended against giving him this information. I've never heard of anyone requiring this - and we're not kids, so it's not like we'd need co-signors, we're well qualified. The broker then replied that unless we filled in the for as he demands, he'd advise the seller to not even respond to our offer. I've never sen such behavior, and I've bought property before, and we've been looking for a while, so we ran across many instances of obnoxious behavior. But this just seems like he wants to derail any possible deal. So basically he's trying to bully us. (politely as possible) This is not a unique apartment; it's in a very big building and there are two identical units per floor. One comes up for sale every few months. Should I just stop dealing with this guy, or is it worth going to his boss? [less]