Re-financing Queens coop

Hi all - I'm looking into re-finance options for my Queens coop that I just purchased 3 months ago. I need money to cover the repairs that I charged. My bf is an appraiser and knows that we have increased the value of our coop. I understand from talking to a couple of banks that we can't do a refi for 6 months. Is that true industry wide? Also, I spoke to one banker who said we would have to use our original appraisal value and not the new one showing the increase in value for one year. This doesn't make sense to me, as a new appraisal is always needed every 90 days I believe. If anyone has any insight on this, I would appreciate some guidance. Also, any suggestions on a good refi bank that does coops? Thanks!!