Hamilton faces debts of around £2m as a result of his libel trial with his biggest creditor Harrods owner Mohamed Al Fayed who is seeking more than £1.3m.
Brittain was voted trustee at a meeting of creditors at the office of the Official Receiver on Friday.
Highly experienced with high-profile cases such as working on Jonathan Aitkin’s bankruptcy under her belt, Brittain’s key tasks will be to decide whether claims against Hamilton are justifiable and then seek out his assets to settle the debts.
She said: ‘It’s going to be a big job with a financial history that will need investigating. And we are looking forward to getting to grips with it.’
One of the first tasks for Brittain will be meeting with Hamilton to discuss his financial status and put together an inventory of assets. High among these will be Hamilton’s property and whether he holds shares or life policies.
Other areas for examination will include assets that have been transferred away that might be reclaimed for creditors.
However, the full details of Hamilton’s assets and what he owes have not yet emerged.