In many jurisdictions, it will appear in the purchase agreement, too. As for the closing disclosure requirement to disclose the real estate commissions paid by the seller, the borrower or any other party (and any other costs of the real estate transaction) see §§1026.38(g) and 1026.38(g)(4) and comments 38(g)(4)-1 and -4.
John S. Burnett
Fighting for Compliance since 1976
Bankers' Threads User #8