Roxanne Leah Stahl , a daughter of Elizabeth and Eric C. Stahl of Longmeadow , Mass . , was married yesterday to Christopher Forrest O'Hara , the son of Patricia and Robert E. O'Hara of Saddle River , N.J. Eva Sheridan , a justice of the peace in Stockbridge , Mass . , officiated at Wheatleigh , a hotel in Lenox , Mass . .