Depth and Judgment, Delivered with Focus

Lumen Law Group was founded to bring senior-level counsel and institutional-quality execution to clients who value decisive thinking, well-structured guidance, and results that hold up under scrutiny. We offer the standards of elite firms—without the bureaucracy—advising on transactions, governance, and strategy with the experience and legal fluency trusted by sophisticated decision-makers.

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Strategic Counsel for Complex Transactions and Business Growth.
Strategic Counsel for Complex Transactions and Business Growth.
Strategic Counsel for Complex Transactions and Business Growth.
Strategic Counsel for Complex Transactions and Business Growth.
Strategic Counsel for Complex Transactions and Business Growth.
Strategic Counsel for Complex Transactions and Business Growth.

Why Choose Us

Why Choose Lumen Law Group?

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Sophisticated, Senior-Led Counsel

Every engagement is led by Mark Haddad, offering direct access to senior-level judgment honed at the highest levels of the profession. This hands-on approach ensures the clarity, precision, and discretion clients expect from top-tier firms—without the bureaucracy.

Integrated Legal and Financial Insight

With experience at Sullivan & Cromwell, Goldman Sachs, Jones Day, and PwC, Mark brings a rare combination of legal, financial, and transactional insight. This integrated perspective allows for informed, decisive counsel across complex legal and business issues.

Efficient, Impactful Execution

Our work is focused and efficient—structured to reduce friction, manage risk, and support key business priorities. We approach each matter with discipline and clarity, delivering advice that moves matters forward without unnecessary complication.

A Trusted Partnership

Clients rely on Mark not just for legal execution, but for judgment. As a long-term advisor to founders, executives, and investors, he is known for being clear, candid, and deeply invested in the success of the people and businesses he serves.

Meet Mark Haddad

Mark Haddad’s career spans leadership roles at Sullivan & Cromwell, Jones Day, Goldman Sachs, and PricewaterhouseCoopers, where he built a rare blend of legal and financial expertise.

As both a CPA and a seasoned corporate lawyer, Mark brings a strategic, financially informed perspective to every engagement. His ability to navigate legal and business complexities ensures clients receive solutions that drive transactions, mitigate risk, and achieve business objectives.

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An Unmatched Strategic Partner

"Mark’s legal and financial expertise gave us confidence in securing a critical equity investment."

Brandon Marques
Dream Street
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Expertise Beyond Expectation

"Mark’s CPA background and tireless dedication ensured the successful sale of my business."

Jacquie Holmes
Kiwi Partners
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Trusted Advisor with Integrity

"Mark’s care and determination deliver thoughtful, impactful solutions."

Andrew Steginsky
Steginsky Capital
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An Unmatched Strategic Partner

"Precise, commercially minded, and on par with top-tier venture firms—at a cost structure that makes sense."

Joy Marcus
General Partner, The 98
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An Unmatched Strategic Partner

"Efficient, focused counsel that cuts through the noise and gets the deal done seamlessly."

Tom Henriksson
General Partner, OpenOcean
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