Ideal Properties Group LLC has completed four leases totaling 11,120 s/f. The broker represented both landlords and tenants in all of the the following leases: * Maria Sartori-Spencer brokered the lease of a 2,700 s/f corner storefront at 257 Grand St. in the Williamsburg neighborhood. Shipping and mailing expert Sandbox added another location to its list of area offices. Sandbox inked a five-year lease, with two options for five additional years each. * Justin Dower brokered the lease of a 600 s/f storefront at 435 7th Ave. in the Park Slope neighborhood. Previously occupied by a women's clothing retailer, the space has been leased by Ajami Organics Corp. The new tenant signed a five-year lease, with an option for five additional years. * Sartori-Spencer brokered the lease for three units totaling 7,300 s/f in the Long Island City neighborhood. The space, located at 9 35th Ave., will be used as artist studios. Aesthetic Movement LLC inked a five-year lease, with two additional five-year options. * Aleksandra Scepanovic brokered the lease for the 520 s/f space at 75 10th Street in the Gowanus neighborhood. The space was leased by indie perfume line company D.S + Durga. The tenant signed a one-year lease. Ideal Properties Group LLC is a Brooklyn-based real estate brokerage firm specializing in residential and commercial rentals and leasing. This dynamic team employs a number of top producing agents, researchers and design professionals from a variety ofdesign fields.