Notice and penalty decided for early termination of commercial lease

Hello Miss Amira,

This is A. from a properties company.

For a commercial property (office), I have two questions.

Q-1: How many days should be the early vacating notice from the tenant?

Q-2: How much is the penalty of the tenant for breaking the contract early?

Kindly reply to me at your earliest.

Regards,

J. A.