Karen Oliva, left, has joined the law office of Michael L. Pfeifer in Garden City as a legal assistant. The Dix Hills resident was executive assistant to the corporate tax division senior vice president at Pfizer in Manhattan.

Joseph Coluccio has been promoted to partner at the Rockville Centre law firm now known as of DerGarabedian, Dillon, Grizopoulos, Nathan & Coluccio. The Kings Park resident had been an associate at the firm.

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