Is it common for landscape architecture firms to offer golf course design as just one of their services?
As a landscaper, I'll consider all requests, and wouldn't turn down the opportunity to offer services for golf related designs, but I'd also be honest with my limitations. I've read books about how to build greens - USGA, Cal, purrwick, etc., but my hands-on experience is nil. So, I'd probably only be hired if I was cheap and could convince a client of proven concepts that I'd stolen from Old Dead Guys.
Heck, I don't want to be a Mike Young "Golf Guy", but I do feel like my studies have taught me more than just "trees in threes" (a rule that really bugs me) and "drainage, drainage, drainage."