I won't answer the question directly, but would refer you to 226.16 and 226.24 as well as the respective OSC.
The real answer I'd have is if you can control the advertisement, it refers business to you and to a particular lender with that persons business card, how strongly do you maintain that it isn't your ad, your Reg. Z problem or your RESPA problem?
_________________________
AndyZ CRCM
My opinions are not necessarily my employers.
R+R-R=R+R
Rules and Regs minus Relationships equals Resentment and Rebellion. John Maxwell