According to Jeffrey Newman, executive VP of W&M Properties, Chemlube International, Inc. has signed a renewal and expansion lease for 3,497 s/f on the third floor of 500 Mamaroneck Ave. W&M Properties is the marketing and management agent for the building. Chemlube markets base oils, finished lubricants and fuels, including alternative fuels. It had been occupying 2,597 s/f on the third floor, and now has expanded its space by 900 s/f and renewed for a term of five years. Newman represented the landlord in this transaction, with assistance from senior leasing associate Kimberly Zaccagnino and assistant VP Kathleen Caracappa. Eric Goldschmidt of Goldschmidt & Associates represented the tenant. 500 Mamaroneck Ave. is a five-story, 285,000 s/f, multi-tenanted office building.