EXHIBIT 10 PURCHASE AND SALE AGREEMENT THIS PURCHASE AND SALE AGREEMENT made as of the 4th day of October, 1999 ("Contract") between INVESTMENT PROPERTIES ASSOCIATES, L.P., a New York limited partnership, having an office c/o Helmsley-Spear, Inc., 60...Purchase and Sale Agreement • October 7th, 1999 • Investment Properties Associates • Operators of nonresidential buildings • New York
