Ameriprise Financial has signed a 12,000 square foot lease renewal at 11 Greenway Plaza in the Greenway Plaza submarket. The leading financial planning and advisory firm was represented by Mike Quinn with Fritsche Anderson Realty Partners. Bubba Harkins with Cousins Properties handled negotiations for the landlord. Fritsche Anderson Realty Partners is a Houston-based commercial real estate services firm specializing in the representation of office and industrial tenants in Houston and across the United States.