Is it permissible for the Shaykh to write the name of the second witness in the marriage contract without his personal presence?

The majority of scholars stipulate the presence of two witnesses for a marriage to be valid. The aforementioned contract is valid if it took place in the presence of your grandfather and the shaykh who wrote the contract, unless the shaykh conducted the contract by proxy for the guardian, in which case he cannot be a witness. The shaykh erred by writing down another witness who was not present at the contracting session, as this constitutes deception and forgery.