HCMP provides pro bono legal services to the plaintiffs in Ingersoll v. Arlene’s Flowers. On February 18, 2015, in a historically significant ruling, the court found that a florist who refused to provide flowers to a gay couple for their wedding had violated state anti-discrimination and consumer protection laws.

More recently, on November 11, 2016 and in response to Arlene's Flowers' appeal of the ruling, HCMP presented oral arguments to the Washington Supreme Court. On February 16, 2017 the Court, in an unanimous decision, affirmed the lower court ruling. The firm is committed to continuing the fight to the finish on a pro bono basis. While the case has required a significant firm investment, HCMP deeply values diversity and equality, and was committed to working hard to ensure a victory.