client has some footage on HDD and wants me to do some quick turnaround editing by linking to his files via AMA. I think (could be wrong) he is also asking if push came to shove, could I just edit remotely (he's a bit of a drive away) from my boutique with my Avid software. Does AVID Allow someone to access AMA files from another system via ethernet (with proper ip/server info)?
Also, client has media composer, I have Xpress Pro, does that cause issues?
The bandwidth alone required for that to happen would never work. Your best bet is to create small proxies for editorial and send those via dropbox, WeTransfer, or other shared/send file solutions. If duplicate media exists in both areas and is managed by Avid, it is easy to send bins/sequences back and forth during editorial.
Avid does provide for an Avid Everywhere with editorial over browser, but requires ISIS storage, Interplay, then additional options on top of that to make it work. You're talking 6 figures to get that working.