A matter pertaining to advice that is subject to solicitor-client privilege, including communications necessary for that purpose; commercial and financial information supplied in confidence, the disclosure of which could reasonably be expected to prejudice significantly the competitive position or interfere significantly with the contractual or other negotiations of the Corporation, result in similar information no longer being supplied to the Corporation where it is in the public interest that similar information continue to be so supplied and result in undue loss or gain to any person, group, committee or financial institution or agency with respect to a property acquisition.