Are you guys saying that you can have a 'one man Sub Part F' where one person can issue the CRS and ARC and be the CAM when Sub Part G and F are the same company?!
Smarthawke - yes we are! Again - to be clear: Subpart F would issue a CRS, Subpart G would do CAM and issue the ARC (if it had subpart I priviledges).
Your surveyor may be correct in saying 'one man' organisations would have trouble attaining Subpart F, due to all the other requirements (facilities, management structure etc etc) but there is nothing to prevent it if all requirements are met.
Be aware that this legislation is new for everyone - including the CAA. Knowledge levels vary among surveyors and it's always worth pressing for written justification (via the AMC or Part M itself) if you have a query.