Is there any statutory duty on transferor and transferee to consult with each others’ workforce before the transfer, as opposed to their own?

No. There is no statutory duty on the transferee or the transferor to consult with each others’ workforce (UCATT v Glasgow City Council [2008] UKEAT/7/08). The statutory duty requires the transferor to consult with its own employees and the transferee to consult with its own employees, in each case before the transfer takes place.