A State Financing Agency Warns It Faces Bond Crisis
NYS Housing Finance Agency has turned to Gov Carey for emergency assistance to deal with its financial problems; agency officials have warned Gov that mid-Oct is 1st crucial point, with more than $60-million needed, most of it related to current dispute at Co-op City in Bronx; city's borrowing crisis and earlier default by NYS Urban Development Corp are all related to HFA problem (M)