One fateful encounter in 2022 will soon culminate in one of the year’s most fashionable nights to benefit Mercy School for Special Learning. Seth and Desiree McMullan, the mother-son duo behind Seth Co. Special Brews in Easton, and designer Shelby Lawson, the owner of Lawson Accessories in Bethlehem, are partnering to host DNA Chic Catwalk on March 2.