How and when to hire an interior designer

Featuring Deborah Grubman, David Adler, and Paul Albano's listing at 2 East 55th Street, Midtown East and Elizabeth Spahr and Liz Schwartzberg's listing at 1965 Broadway, Upper West Side: https://www.cityrealty.com/nyc/market-insight/features/get-to-know/how-hire-interior-designer/15688