Shaheen Guerrera & O'Leary, LLC (SGO) stands as a premier full-service law firm serving Massachusetts and New Hampshire, backed by over a century of combined legal expertise. Our distinguished partners - Peter Shaheen, Sean O'Leary, and Nicholas Guerrera - bring deep-rooted community connections and extensive experience in both state and federal courts. We take pride in delivering personalized attention with sophisticated legal strategies, ensuring each client receives the dedicated support they deserve. Our commitment to excellence and understanding of local dynamics makes us uniquely positioned to handle your legal challenges effectively.
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