Marshal's rhymes with:
marshall's, marshals, martials, marshall's, marshals, martials, marshall's, marshals, martials, beneficial's, bushels, commercial's, commercials, credentials, differentials, facials, ficials, financial's, financials, herschel's, infomercial's, infomercials, initials, marshall's, marshals, martials, official's, officials, officials', special's, specials
Marshal's sounds like:
marcellus, margolick, margolies, margolis, margulies, margulis, marsalis, marschalk, marseilles, marshall's, marshalls, marshals, marsolek, marszalek, merciless, miracles, miraculous, morsels