Greetings,
My name is Mark Greenwald. I may not be what your are looking for in a draftsman, but more experienced in all the areas you specified in your request.
I am a general transitioning to just drawings. If your company needs assistance part time or by project, I'm located in Long Beach. I've been using Chief Architect for our drawings for many years now, but there are still elements I draw by hand because its faster and has not prevented any drawing from being accepted by the local building and safety departments. Additions have been our forte for years. I've collaborated with one engineer for years now. It's been functioning well but I want to kick it up a notch.
Let me know if you have an interest.
Regards,
Mark Greenwald
mbgreenwald@verizon.net