News Limited-controlled REA Group offered to establish a slush fund worth tens of thousands of dollars for a leading Melbourne real estate agent if it committed to an exclusive two-year advertising deal.

The text of a so-called "premiere package" offer from last month, marked "commercial in confidence" and obtained by Crikey, shows how a leading agent was offered the cash to run "training", co-branded marketing material and other "collaborate initiatives" if it sealed an agreement with the market leader.