How To Write A Letter To Iowa House Rep . Street address is too long! During the legislative session, send letters to the state capitol building. Letter to Attorney General United States Senate Government from www.scribd.com Public 1 main street anywhere, ia 55555. Please contact your county auditor for more information. In formal correspondence, members of the house of representatives are addressed with the title the honorable. representative john smith, for instance, would be addressed as the honorable john smith. you should include this formal title at the top of the address.