A federal appeals court has upheld the corruption conviction of a former North Providence town attorney who facilitated bribes to three town councilmen. Robert Ciresi was convicted in April 2011 of bribery, extortion, and conspiracy charges. The jury found he arranged and delivered a $25,000 bribe to then-Councilman John Zambarano after the Town Council rezoned a plot of land so a supermarket could be built there. Ciresi also helped put Zambarano in touch with a middleman on a separate $75,000 bribe related to a mill development. Zambarano and his two fellow former councilmen involved in the scheme, Joseph Burchfield and Raymond Douglas III, are all serving prison terms.