Sylvia Kos is a savvy professional Realtor serving DuPage and Cook county- Chicago, Hinsdale, Willowbrook, Burr Ridge, Downers Grove, Clarendon Hills, Westmont, Western Springs, Darien, Lemont, and surrounding communities. Growing up in Hinsdale, Sylvia has the local insight and neighborhood knowledge that comes from being a resident for over 20 years. She is a superlative sales professional, combining her creativity, business savvy approach, and...