Sorry Rita, Strange notices that it's a one-sided contract and can't help but raise an eyebrow. He sets the quill down on the table as he looks over at her. "I accept. However, it's only fair that you answer any questions truthfully as well."

Strange is annoyingly open. Him trying to answer any questions without lying wouldn't really have as much of an effect as someone who's a bit more closed off would. Besides, a part of him wants to see how Rita would react and push against the bonds of a contract.