When a new client contacts you without a client or colleague introduction, or where an introduction is made by a member of Central Office, then that new client is 'owned' by Central Office and this must be recorded on the resulting New Client Form. If the new client's requirement does not fall within your own expertise, you are at liberty to develop a relationship with that client and take on the new instructions and pass the work to a colleague with the requisite expertise, but ownership will remain with Central Office.
This rule is equitable given the significant time, effort and expense involved in developing and maintaining the firm's website, generating relevant traffic to it, preparing client newsletters, publishing Keynotes, employing dedicated marketing and PR professionals, hosting events, and generally enhancing the firm's profile and reputation.