Unless you've already posted those requirements, it's more like vuja de (that feeling that you've never ever been here before :>)
Am unaware of any 'guidelines' such as ArneFufkin mentioned. Just asked the club Steward. He said there are none for the club.
from http://www.pgatour.com/tournaments/2003_pga_exempt.html
12. Sponsor exemptions (a maximum of eight, which may include amateurs with handicaps of 2 or less), on the following basis: A. Not less than two sponsor invitees shall be PGA TOUR members not otherwise exempt. B. Not less than two of the top 35 finishers and ties from the last Qualifying Tournament, as well as 2-15 from the 2002 Nationwide Tour money list, if not all of them can otherwise be accommodated. (Note: PGA TOUR members may receive an unlimited number of sponsor invitations. Non-TOUR members may receive a maximum of seven per year).