The general consensus seems to be that Regulation Z applies to real estate brokers (e.g. in Real Estate advertising they say if you put the monthly payment, you have to put the APR in order to comply with Regulation Z. See http://www.realtor.org/archives/doyouradssdenarchive1996dec). But when I read Regulation Z, It states: "In general, this regulation applies to each individual or business that offers or extends credit...". (See: http://www.fdic.gov/regulations/laws/rules/6500-1400.html ). Most real estate brokers don't offer or extend credit; they are not lenders/creditors. Why would the consensus be that "Regulation Z" applies to real estate brokers? I notice that Zillow.com shows monthly payments without showing the APR.