Agents in all three states cited location and walkability as a key factor.
"Primarily, millennials are focused on location as the main selling feature," Forster Jones said. "Whether they are looking for views or a home with walkability to local shops and/or their job, the location plays a major part in the decision-making process."
In New York City, many want to be able to walk to work, according to Ian Slater of Compass.
Millennials also want to walk to restaurants, recreational activities, and, in the case of Florida, the water, Minkoff said. Millennials with kids also look for proximity to good schools, he said.