On the heels of the city acknowledging illegal lobbying for the Willets Point redevelopment, a lawyer for opponents last week requested that it withdraw the project’s 2008 approvals, calling them “the fruit of a tainted process.” Said Michael Gerrard, the lawyer for Willets Point United: “Citizens deserve fresh decisions without that poisonous taint.” The city has no plans to answer until his argument is made in court, which is likely. “The reasoning behind the request that the city void the approvals … is wrong,” said Christopher Reo, senior counsel for the Law Department’s environmental unit