In 2015, Morgan Lewis filed a historic "amicus" brief for the definitive Supreme Court case of Obergefell v. Hodges, on behalf of 379 companies, including Apple, Google, Microsoft, Amazon, Walmart, JPMorgan Chase, and the New England Patriots, which argued "a business case for legalizing same-sex marriage across the country." Partner Susan Baker Manning, who authored the brief, in 2018, was added as a full-time senior trial lawyer to the firm's "pro bono" group led by senior counsel Rachel Strong, with focus remaining primarily on refugee and civil rights, and "issue-based litigation", according to firm chair Jami McKeon. The firm is an affiliate firm of the Minority Corporate Counsel Association (MCCA).