One wonders what legal liability or right Textron Inc. has to issue orders on aircraft built before this date
The answer to that is straightforward, CESSNA still holds the Type Certificates of all Cessna models, so whoever owns CESSNA at any given time has to support the company. Or they could choose to not support the company, and put it into bankruptcy, in the event of a major hit.
Unlike "old" Piper and "New Piper", there is no new and old Cessna.
Tootle pip!!