Washington, DC – June 3, 2011 – (RealEstateRama) — West Palm Beach Coalition for Independent Living Options (CILO) and the National Fair Housing Alliance (NFHA) have filed a housing discrimination lawsuit against Cornerstone Group Development Corporation (www.cornerstonegrp.com), one of the largest multifamily housing developers in Florida and the United States. The organizations allege discrimination by Cornerstone Group and several of its affiliates against people with disabilities under the federal Fair Housing Act.