EXHIBIT 1.1 VAN KAMPEN UNIT TRUSTS, TAXABLE INCOME SERIES 144 TRUST AGREEMENT Dated: September 11, 2008 This Trust Agreement among Van Kampen Funds Inc., as Depositor, The Bank of New York Mellon, as Trustee, Standard & Poor's Securities Evaluations,...Trust Agreement • September 11th, 2008 • Van Kampen Unit Trusts Taxable Income Series 144
