My question involves business law in the state of: CA
So this is a simple question that has thrown me for a loop. Lets say my Company X comes to an agreement with Company Y. Company X signs agreement, scans the signed agreement, and then emails it to Company Y. Company Y now signs the emailed copy they received and emails it BACK to Company X. Is this still a valid contract? Do I have to have a clause stating that counterparts will be treated like originals?
Thank you in advance. I'm going to continue my search but I would appreciate any help as always.

