Hillcrest Acquisitions has paid $9.4 million for a five-story multifamily walk-up building in the Inwood section of Manhattan, according to information provided by Cignature Realty Associates. The seller was Geisinger Equities. The 37,700-square-foot building is located at 546 Isham Street at Vermilyea Avenue. It encompasses 49 apartments: 32 one-bedrooms, 10 two-bedrooms, four three-bedrooms and three studios. None are free-market. Cignature Realty’s Lazer Sternhell and Pete