Do multi site have to complete the QET for each separate site or as one site?
The choice is yours – the QET is predominantly a self-improvement tool. There is obviously a degree of effort involved in filling in the QET out each time, and this may be justified as your sites could be very different. A useful compromise would be to complete one QET for the main site and one for the smaller sites (only answering yes where the statement is true for all sites).