Ten financial institutions who have had dealings with Dublin solicitor Michael Lynn are to exchange information in an effort to find out exactly how much money he owes them.

The financial institutions are IIB Homeloans, Bank of Scotland Ireland, Ulster Bank, ACC Bank, AIB, First Active, Irish Nationwide, National Irish Bank, Permanent TSB, and Bank of Ireland and some of its subsidiaries.

The proceedings were back before the President of the High Court, Mr Justice Richard Johnson, to allow banks who gave money to Mr Lynn to make applications to have the money repaid. Mr Lynn's assets have been frozen.

As well as the financial institutions, the court also heard an application from Mr Lynn's wife, Brid Murphy, to be given information in relation to two properties - one owned by her, the other jointly owned by Ms Murphy and Mr Lynn.

A lawyer for a person who bought a property from Mr Lynn in August last year also signalled his concern - he said the purchaser had been given undertakings by Mr Lynn but has not yet been able to register the title to the property.

Mr Lynn's insurers AIG Europe also asked to be kept informed of the proceedings and a representative of a receiver appointed by Anglo Irish Bank and Bank of Scotland was also present.

Mr Justice Johnson was told by the Law Society that its investigation into Mr Lynn's practice was continuing and more information would have to be gathered before any applications from banks could be processed.

Senior Counsel, Shane Murphy for the Law Society, said different financial institutions had claims on the same properties and the extent of these liabilities needed to be discovered.

After a suggestion from lawyers from IIB Homeloans, the court ordered that each financial institution should prepare a list of properties for which it loaned money on foot of undertakings from Mr Lynn or any solicitor purporting to act on his behalf. 

The court ordered that the banks should list the borrower in respect of each property and that Mr Lynn should provide as much information as he could.

Senior counsel John Gleeson said there seemed to be an 'information deficit'.  Mr Justice Johnson said he would describe it as 'a lacuna'.

The court also heard that the Law Society has now been furnished with a list of properties in which Mr Lynn has an interest but that the society has not been provided with any information as to the mortgage status of these properties.

Mr Justice Johnson said the degree of co-operation or absence of it by Mr Lynn would be noted. The proceedings will be back before the court next Monday fortnight.

Separately, it is understood Thomas Byrne from Walkinstown - the other solicitor whose practice was closed down in the past two weeks - also owes at least tens of million of euro to a number of banks. The banks involved in his case so far are IIB Bank, ICC, Bank of Scotland Ireland, ICS, Ulster Bank, Anglo Irish Bank, and Bank of Ireland. It is understood the EBS is also owed money by him.