Sherwin-Williams and Riverstone Residential Group, a national, privately-owned, third-party multifamily management provider, have formed a multi-year supply partnership. Under the agreement, Riverstone's extensive portfolio of properties will directly source and consolidate orders for paints and flooring from Sherwin-Williams. The new agreement lists Sherwin-Williams as Riverstone's exclusive marketing partner for paint and one of Riverstone's preferred marketing partners for flooring between 2012 and 2014.