The football agent regulation are a bit wordy, but I found this bit interesting:
An Authorised Agent (or an Authorised Agent’s Organisation) shall not, save as set out in
Regulation H8 and subject to the transitional provisions in Regulation K6, have an interest
in a Club. Such interest shall be defined as:
(a) beneficial ownership of more than 5% of any entity, firm or company through
which the activities of the Club are conducted and/or
(b) being in a position or having any association that may enable the exercise of a
material financial, commercial, administrative, managerial or any other influence
over the affairs of the Club whether directly or indirectly and whether formally or
informally.