Biba held a seminar for its Northern Ireland members last week in an effort to raise awareness of problems associated with using broker chains.
This followed reports that a number of brokers in the region have got into difficulties.
A Biba spokesman said: "There are about 15 brokers in Northern Ireland that are owed large amounts of money as a result of problems experienced with broker chains."
It was reported last month that Northern Ireland broker Laing & Co has accused Yorkshire-based broker Preston Whiteside of "collecting clients money and not placing the cover".
The Biba spokesman stressed that the seminar was not about the problems involving Laing & Co and Preston Whiteside.
It is believed that a number of Northern Ireland brokers could now face E&O claims from clients as a result of problems arising from broker chains.
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