The Public Accounts Committee (PAC) will today hear from top officials at the National Asset Management Agency (NAMA) who dealt with the controversial Project Eagle sale.
Those giving evidence will include the body's former Chief Financial Officer, Donal Rooney.
The sale of NAMA's Northern Ireland loan book has been mired in a string of controversies, and is the subject of a police investigation in the north.
PAC chair Sean Fleming hopes today's witnesses will shed more light on the sale.
He said: "These are the people who dealt with and have first-hand knowledge of their dealings with Pimco, Cerberus, Lazards the selling agents - and these are the people at the coal face who, if you like, have the most direct knowledge of what actually happened during the Project Eagle sale.
"They're the people who would have prepared all the information for the board members who ultimately made the final decision."