Talks among key players in discussions to rescue Lehman Brothers, the embattled financial group, resumed on Sunday morning as expert groups of Wall Street division chiefs, Fed and Treasury officials continued to try to find a solution before markets open on Monday.

One of the options being discussed is for Wall Street firms to buy the $30bn-plus of property assets held in Lehman Brothers’ “bad bank” in order to facilitate a rescue takeover for the embattled financial group.