It's funny how @Shannon Jones doesn't mention utilizing an Architect but you've immediately jumped to this conclusion @Henry T.. Past problems?
Evaluating her questions and request, an Architect may suit her needs exactly. As for the scope of work which she has mentioned, it does not seem highly complex and for the average Architect, it wouldn't be a costly endeavor. This scope could quite possibly be undertaken by a highly experienced Interior Designer also. Design Professionals have a keen eye for design and solving problems which may not be apparent to most. Also we think three dimensionally and can envision the space complete before most people can, even in a raw gutted or unbuilt conditions. A drafter may have a very different set of experiences and may not be a designer at all, so they would need to be very skilled.
Best for her to do some research and contact a drafter, Architect and Interior Designer to make the choice which works best for her budget, scope of work and deliverables. (There was no mention of permitting and municipalities requirements.)
-Jared W. Smith, RA - Principal Architect at Architect Owl PLLC (Licensed in NY & CT)