Common Law US logoJonathan T. MannAttorney at Law · Common Law US
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Common Law US

Business Law.One Strategic Partner.

Start or Grow Your U.S. Business

Corporate formation, contracts, M&A, and outside general counsel for companies building in the United States.

Jonathan T. Mann, Attorney at Law

How can I help you?

Jonathan (JT) Mann has practiced business law for more than thirty years. He helps U.S. and international businesses succeed.

Business Law

01 / Startups & Technology Companies

Startups & Technology Companies

Entity formation, founder agreements, equity, vesting, SAFEs and convertibles, venture financings, and the commercial and SaaS agreements that carry a company from idea to institutional scale.

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02 / Mergers & Acquisitions

Mergers & Acquisitions

Buy-side and sell-side representation across the middle market, from letter of intent through diligence, definitive agreements, and closing.

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03 / International Transactions

International Transactions

Joint ventures, distribution and agency arrangements, and inbound and outbound investment for companies operating across borders.

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04 / Non-Profit Organizations

Non-Profit Organizations

Formation, governance, and outside general counsel support for U.S. non-profit organizations, including board governance and the everyday contract work that keeps a mission-driven organization running.

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A broad legal practice based in Boston — but ready to meet with you in Manhattan, Orlando/Miami, Rio de Janeiro, Seoul or elsewhere around the globe.

Helping businesses succeed across the U.S. and around the world.

Credentials

Why Clients Trust Our Firm

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More than thirty years of practice in the United States and abroad.

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Bar Admissions: Massachusetts · New York · Maine · U.S. Supreme Court

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Former law clerk, U.S. Court of Appeals for the First Circuit, Boston.

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Former Foreign Legal Consultant, Seoul, Republic of Korea.

Cross-Border Practice

  • Brazil

    Brazil

  • South Korea

    South Korea

  • Spain

    Spain

  • Portugal

    Portugal

  • United Kingdom

    United Kingdom