Much of the commercial work that Daniel Alter has engaged in has been for developers, landlords, co-op and condominium boards as well as attorneys working on MCI or tenant-landlord issues. The firm’s goal is to coordinate any work in the interests of building owners, leaseholders, occupants, contractors or developers.

Daniel Alter was the Project Manager for significant portions of the $200 million revitalization of Grand Central Terminal, the nation's premier urban transit hub, while 500,000 daily commuters continued their travels uninterrupted. He also did extensive work for MetLife as well as various stakeholder groups in smaller buildings throughout New York City. On a smaller scale, Daniel Alter helped a Lexington Avenue landlord determine whether his mixed-use building could be converted into condominium units.