Brand MarketingMullen, GSD&M Reach Finals for AARPBy David Gianatasio|June 24, 2002ShareBy David Gianatasio|June 24, 2002ShareBOSTON — Mullen and GSD&M have advanced to the final round in the review for the AARP’s $25 million advertising account, an AARP representative confirmed on Monday. Wenham, Mass.-based Mullen and Austin’s GSD&M were culled from an initial list of about 15 agencies. GMMB, Washington, D.C., the incumbent, did not participate. Adweek Adweek