North Miami Beach Mayor Anthony DeFillipo is refusing to step down from office despite a veritable revolt on the municipal commission and mounting allegations that he is living outside the city he is supposed to represent. DeFillipo has been under intense public scrutiny since December, when a resident filed a complaint against him with the Miami-Dade Commission on Ethics and Public Trust, alleging that he lives in Davie — about 15 miles away from North Miami Beach — in violation of the city charter…