I really like InkyBooky's phrasing -- it would be like catnip for my relational therapist. I would probably suggest avoiding the word "transference" altogether because it means different things to different people. Attachment issues is much clearer. You might also ask if they have recommendations if they think they might not be the right fit for you because this is a sort of specific kind of therapy. You might make sure that they are comfortable working with trauma (especially relational trauma) to make sure you land in the right place.