I think it will be better to attend the CFO Guidance and Counseling right after her interview, that is what I did. Any ways, you can attend that seminar anytime though as the process goes on before getting the Visa.
I got my CFO Orientation before i process my passport bec. that is on of there requirements..and they will tell your wife to go back in there office if she got her Visa on hand already...Wait where exactly in phil.she live?