I'm a freelance copywriter in a bit of a fix, and I thought I should get some opinions on how to best handle this situation. I have a client who regularly sends me requests for uncomfortably large, cumbersome website-writing jobs that tend to be heavy on technical information and require lots of outside research. (I'm primarily a marketing-copy "sizzle" kind of writer, myself, but I can write this other stuff when I have to.) He expects to pay the same flat fee as my marketing clients get for a small, relatively simple website job (I charge flat per-project fees because most clients hate surprises), and he complains loudly when I try to bill extra for all the research and extra hours I must put into material that falls outside my area of expertise. I don't want to be nasty and "fire" him as a client, but at the same time I don't want to keep losing money by working twice as many hours as the job fee covers. I'm thinking that the most diplomatic way of handling it would be to simply inform him that I'm "removing large-scale website jobs from my product line" and offer to refer him to other writers for those situations. That way he's still welcome to submit requests for smaller jobs if he likes. What would you do?