Unfortnately self regulation without the necessary backup leglislation is rather impotent, consider it similar to a golf club and their own internal rules.
The IAVI does have procedures and does follow them, a number of EAs have had their membership revoked in recent years for various infringements, but this is about the extent that the IAVI can goto, unless it can be shown that the EA acted illegally and is brought through the courts then they are fairly toothless.
In relation to other posts above, there can be other factors in a bid being accepted/rejected, we recently got a very good bid (probably above the market value of the property) however the vendor was not able to sell as the bid was still less than the outstanding mortgage and the bank refused to consent to the deal. They may yet regret that!!!!
The IAVI does have procedures and does follow them, a number of EAs have had their membership revoked in recent years for various infringements, but this is about the extent that the IAVI can goto, unless it can be shown that the EA acted illegally and is brought through the courts then they are fairly toothless.
In relation to other posts above, there can be other factors in a bid being accepted/rejected, we recently got a very good bid (probably above the market value of the property) however the vendor was not able to sell as the bid was still less than the outstanding mortgage and the bank refused to consent to the deal. They may yet regret that!!!!