Exhibit 10.13 ADDENDUM TO STOCK EXCHANGE AGREEMENT This Addendum to Stock Exchange Agreement dated April 8, 2005 to be effective as of January 14, 2005 ("Agreement") is by and among National Parking Systems, Inc., a Nevada corporation ("Purchaser" or...Stock Exchange Agreement • May 3rd, 2005 • National Parking Systems, Inc. • Services-business services, nec • Texas
RECITALSGeneral Release and Settlement Agreement • May 3rd, 2005 • National Parking Systems, Inc. • Services-business services, nec • California
