Exact's other servicing clients include four tier one investment banks and several investment funds.
It's latest win followsExact being awarded a special servicer rating from Fitch Ratings, the global ratings agency.
Ian Lonergan, CEO of Exact, said: “We have had a great start to 2012. In January we received our special servicer rating from Fitch Ratings, and today we are able to announce our new relationship with well known mutual lender.
"To be winning new business in a very challenging market is excellent news, and a testament to the quality of our proposition and people. We hope to be able to announce further new client success in the near future."