The firm also represents clients in establishing ambulatory surgery centers and diagnostic and treatment centers and complying with office-based surgery requirements. In that context, Danziger & Markhoff LLP has extensive experience with establishing physician-hospital joint ventures to provide both multispecialty surgical services as well as single specialty (e.g. endoscopy) operations. The firm is well-versed in the Federal and New York State healthcare regulatory issues involved in such a project, as well as potential securities law issues, and also acts as general counsel for such ventures with respect to contractual and real estate matters.