Koch Industries, an American multinational corporation, agreed to invest $200m in Amherst's single-family rental business. The deal will boost Amherst's capacity for buying houses to $2bn, based on a roughly 80% loan-to-value ratio. The deal could also provide synergies between Amherst and Koch's consumer and building products arm, which includes manufacturers of carpeting, glass, insulation, shingles, wallboard and lighting systems. Amherst, which operates roughly 22k homes, could use Koch products when renovating homes or use the relationship to build a supply chain for developing purpose-built rental homes.