rejected from HDFC. no interview. suggestions?

The board rejected you or the seller decided not to sell and returned your deposit? Boards have wide discretion in accepting a new shareholder and they will never give you a reason. Boards open themselves up to a lawsuit if they do say anything. I know of boards who rejected perspective shareholders because of their profession (an opera singer e.g.), fears they would sublet or they weren't comfortable with the buyer's financials. But my guess is if they didn't meet you it was about your financials. Or it could be a problem with the seller maybe he owes the coop money, doesn't have full title to the apartment.

Unfortunately there is not a lot of recourse for you other than find another coop.

It could have been any one of a half-dozen things. "The money was in my checking account" - well, certainly one would expect that for an all -cash purchase. Is this a board that cared about the provenance of the money? Did your checking account and taxes and pay stubs and gift letter all line up?

Ali r.
(downtown broker)

Some boards discourage drug dealers from buying in.

I was rejected simply because I was a prostitute. Go figure: I certainly had bucket-fulls of cash!!!!

... and probably very good personal business connections with a few of the board members and/or their spouses.

Provenance of the money could certainly be a factor. If you are offering all cash, your income still has to line up with what the building is looking for, i.e. not too high (obviously) but also not so low that they don't think you can maintain the unit for several years. Or have the experience /ability of maintaining a co-op (e.g. you're an under/grad student, part time employed, actor, etc. who happens to have been given money to purchase. Without details its hard to say, but all these are valid concerns of co-ops, especially HDFCs.