An awkward conversation with neighbors in her condo elevator has led Cook County Treasurer Maria Pappas to push for a new county ordinance that helps make county-issued checks time sensitive.When one of Pappas’ Gold Coast neighbors asked her when they would receive their property tax refund, she was surprised to hear the checks had not arrived in the homeowners’ mailboxes.In January and February 2018, the her office mailed nearly 1,000 refund checks for owners in The Residences at Water Tower Place — $444 …