1 EXHIBIT 10.1 SIXTH AMENDMENT TO THE THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P. This SIXTH AMENDMENT TO THE THIRD AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF AIMCO PROPERTIES, L.P., dated as of...Third Amended and Restated Agreement of Limited Partnership • August 16th, 1999 • Apartment Investment & Management Co • Real estate investment trusts
