exhibitl.htm - Generated by SEC Publisher for SEC Filing

EX-99.(L) 7 exhibitl.htm INVESTMENT REP LETTER exhibitl.htm - Generated by SEC Publisher for SEC Filing

EXHIBIT (l)

November 5, 2009

Build America Bond Portfolio
Two International Place
Boston, MA 02110

Ladies and Gentlemen:

With respect to our purchase from you, at the purchase price of $105,000, of an interest (an “Initial Interest”) in Build America Bond Portfolio (the “Portfolio”), we hereby advise you that we are purchasing such Initial Interest for investment purposes and do not intend to withdraw the Initial Interest within the next 24 months.

Very truly yours,

EATON VANCE MANAGEMENT

By: /s/ Robert J. Whelan
Robert J. Whelan
Treasurer