Katharine Smith Santos

Katharine Smith Santos is a senior associate with the law firm of Lynn Gartner Dunne, LLP (“LGD”), where she focuses on complex civil and commercial litigation at the trial and appellate level in federal and state court. Her areas of practice include corporate law and real estate law.

Since joining LGD, she has first-chaired both a 3-day jury trial and a 2-day arbitration hearing. She briefed, argued, and won a federal appeal before the U.S. Court of Appeals for the Second Circuit. She also obtained dismissal of a lawsuit for breach of fiduciary duty in state court in Suffolk County. She has frequently appeared in the Commercial Divisions of state court in both New York County and Nassau County.

In addition, Katharine has worked on numerous real estate matters. She has negotiated and drafted commercial leases for related real estate companies with holdings valued in the hundreds of millions. She had the pleasure of leading a team of borrower's counsel in obtaining a $35 million securitized mortgage from Goldman Sachs and a mezzanine lender. She has also appeared many times in landlord-tenant court, obtaining evictions where necessary to protect her clients’ interests.

Katharine entered the University of Virginia at the age of 14 as part of the Echols Scholarship program for top students demonstrating a desire to challenge themselves academically and explore multiple fields of study. She graduated cum laude at age 18 with a Bachelor of Arts in the Political & Social Thought distinguished majors program, and with a minor in Japanese. Her interdisciplinary senior thesis drew heavily on the fields of the history and anthropology of technology.

After completing her undergraduate career, Katharine entered the University of Virginia Law School. She graduated at age 21, and continued on to a federal clerkship at the U.S. Court of International Trade in New York, New York. She then began work as a trademark litigator with the intellectual property firm of Pennie & Edmonds, LLP. She joined LGD in 2018.

Katharine is admitted to practice law before the Courts of the State of New York, as well as the federal district courts for the Southern and Eastern Districts of New York. She is further admitted to the federal appellate courts of the Second, Fourth, Seventh, and Federal Circuits. She was admitted to the bar of the U.S. Supreme Court in 2019.


“You were extremely thorough. Your advice was always solid and reliable and highly competent. I don’t know of anything you could have done better.”

John Crowley, VP of CCA Financial, LLC

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