Shari Scharfer-Rollins, a senior vice president at the Corcoran Group brokerage with a foreign client who's considering buying at One57, said she's seen a shift in the level of interest at the high end in the past year.
"Inventory is down and demand is up," she said. "The dollar is weak and I think foreign buyers find that they can get more in New York City as an investment than they used to be able to."