A Tribunal order to pay an amount to the owners corporation would also include a date by which that amount must be paid. I would say the person is not yet unfinancial unless that date has passed and the order has not been complied with.
As for being on the committee, I would be concerned if I were another committee member that the committee as a whole operates very carefully to avoid conflict of interest by the member with the order against them and that the committee clearly and transparently operates in the interest of the OC as a whole. The member should voluntarily absent themselves from committee consideration of matters relating to the Tribunal matter and that should be minuted. Regardless of what might be permissible (and I am not sure), I think it is a situation to avoid as far as possible.