Great day,
From the insights of it, you oblige some individual to deal with the change work.
Since I'm new to freelancing. I'm sure that your venture will be my first freelancing venture.
I have 6 yrs of involvement in project administration and documentation. I was a specialist in the deliverable as focused on client.
"I have surely we can hit your due date, yet the sooner we hint at change. Send me an answer with any request you have and we should start today."