Finding a good Upper East Side realtor often means asking other buyers or sellers for their recommendations; many good realtors rely largely on positive referrals. It’s also important to work with a realtor who understands the local market and is familiar with that area of the city. Before you even agree to working with a specific realtor, it’s a good idea to meet informally with them, just to make sure the two of you can work together for what may be months. Of course, any reputable NYC realtor will also have their state real estate licence and be able to verify that for you. Not all realtors work the same way, and some other questions to ask a potential realtor might include: Tell me about your track record? How do you put the customer first? What is your approach to buying and selling?