Latter's rhymes with:
platters, batters, matter's, matters, platters, shatters, spatters, tatars, tatters, vannatter's
Latter's sounds like:
ladders, laterza, lathers, lathouris, leader's, leaders, leaders', leadwork, leathers, leatrice, lehder's, lethargic, lethargy, letters, literacy, liters, litters, liturgy, loaders, lodwrick, looters, lotteries, lueders