Actually, Awfy is partially correct. Any 'public' company is in fact required to disclose financial statements amongst numerous other things, freely available to the public at their pleasure.

Where he goes off is that what kinkarso is offering is not a publicly held company, but rather a privately held one. The bottom line is that as long as kinkarso is willing to share financial details, even if in a private manner, prior to selling a share of the company, that's perfectly legit. So just respect his wish on how he would like things to be disclosed.