Assuming they don't work on the weekends but work on official holidays, can the founders launch their company before the beginning of September, or two months after they start in early July? If not, how can they organize for a September $1$ start?

Which tasks are on the critical path?

Do you agree with the proposed sequencing? If not, propose another sequencing.

Eager to go as fast as possible, the founders initially wanted to start all the tasks as soon as possible. But are there tasks which they should start as late as possible? Why? And would that change anything in the project plan?