Does advertising, which includes historical examples (e.g. RE Loan for $$$,000 on a # year term/amortized for # years with a LTV at ##%), trigger any further disclosure?

No rates/APRs disclosed, just types of loans, term & amo lengths, and LTVs.

Would it make any difference if some had an interest only period?

(e.g. RE Loan for $$$,000 on a # year term/amortized for # years

1026.24

(d) Advertisement of terms that require additional disclosures. (1) Triggering terms. If any of the following terms is set forth in an advertisement, the advertisement shall meet the requirements of paragraph (d)(2) of this section:

(i) The amount or percentage of any downpayment.

(ii) The number of payments or period of repayment.

(iii) The amount of any payment.

(iv) The amount of any finance charge.

But if all the historical examples advertised were for BUSINESS related credit only, that would remove the Reg Z requirements, correct? (My bad for not stating that in the original post.)

If the loans are business purpose, the Reg Z advertising rules do not apply.