NEW YORK IS ADVISED TO DELAY COMPLYING WITH BANK DEMANDS
Munic Assistance Corp Chmn Felix G Rohatyn advises top city and state officials to reject, at least for time being, latest demands laid down by banks as condition for helping city balance budget and pay off short-term notes; Mayor Beame formally submits to Emergency Financial Control Bd program to close budget deficit of between $585- and $725-million by July 1; bd holds 1st meeting open to public under state's new 'sunshine law' (S)