He doesn't. Try a Google search for "George Washington slaves"

• George Washington's Mount VernonTen Facts About Washington & Slavery
• George Washington's Mount Vernon Slavery -UVA List of George Washington’s Slaves, 1799

Try an Amazon search for the same term

• Never Caught: The Washingtons' Relentless Pursuit of Their Runaway Slave, Ona Judge
• An Imperfect God: George Washington, His Slaves, and the Creation of America
• A children's book, Master George's People: George Washington, His Slaves, and His Revolutionary Transformation

Try Google Books

• George Washington and Slavery: A Documentary Portrayal
• Slavery at the home of George Washington
• 43 unique results in Ron Chernow's major biography Washington: A Life
• In the Name of the Father: Washington's Legacy, Slavery, and the Making of a Nation

These are just some of the results for each search

Some other ways George Washington gets a "pass" for owning slaves:

• A 2015 lecture in the George Washington Lecture Series at The George Washington University called George Washington and His Slaves
• An op-ed in The New York Times called George Washington, Slave Catcher
• An Economist article called The first president, slave-owner
• An article in Smithsonian Magazine called Founding Fathers and Slaveholders To what degree do the attitudes of Washington and Jefferson toward slavery diminish their achievements?