You can ask the court to review the invoice, even if you have signed a contingency fee agreement. In an ongoing series, the Law Society`s Practical Advice Service provides advice on a number of issues Q I am acting for the tenant in a transaction in which my client must bear the costs of the landlord`s lawyer. I have just obtained details on these costs that are exaggerated. What can I do? A The tenant does not have the right to request a certificate of remuneration from the lessor`s lawyers, as he is not their client. However, the lessee may ask the lessor to require from his lawyers a certificate of remuneration, although he is not required to do so. In practice, in such circumstances, the Law Society accepts an application for a certificate of remuneration, but only if the lessor consents.