It should be noted, however, that the authority to represent the above mentioned company appearing from the Trade register records may be limited by matters, such as conflict of interest, ultra vires and certain other legal matters, none of which I have investigated for the purpose of the present certificate.

В словаре множество значений, в т.ч. превышение полномочий, все, что выходит за рамки полномочий и пр.

...вопросами, выходящими за рамки полномочий?