No. I wouldn’t. If he referred the account/business/client to you and you pay a referral for the contact. Done. If you then build a working relationship with new client, then that is your doing.
I did have a situation once about 15 years ago where a colleague getting out of the biz referred me to a client who was going to do several vids.
I wrote up a small contract where I gave him 10% of the first 5 projects or all the proj. in the following 12 months, I can’t remember. Sometimes I hated cutting that check, but it all worked out well.
Chris Tompkins
Video Atlanta LLC