Making a customer wait over a month for a revised contract: normal or poor execution? [I will not promote]

I'm CTO of a govtech startup. About a month ago we received the contract for a pilot with our first customer. My co-founder (CEO) wanted to have the contract revised by a lawyer since it is our first contract and didn't want to take any risk. In fact, there are a couple of clauses in the contracts that are favouring our client too much, so I do believe that a revision was necessary. What frustrates me is that it has been a month since we received the contract and we haven't sent back the revised contract ye