Which corporation...Sakar or Vivitar? There is a difference.
If Vivitar misrepresented the extent of their IP (included EDIG's), it's Sakar that would have an action against Vivitar....not EDIG.
As a general rule, your're right about fraud and the corporate veil. If you can prove it, you can reach the assets of the principals.
No...I'm not an attorney but you know the one about the Holiday Inn Express. :>):>)