Wow. I am awestruck by your incredibly balanced game here. I cannot imagine the work that was done to make this game as incredibly balanced as it is.
(Actual suggestions:
Stop Intern and Consultant from becoming loans.
Add an option with a greater reward if you have a large amount of money
Make it clearer what is defined as a "grouping" (unless this is intentional)
Nerf Square even more :>
maybe add options for benefits gained for retriggering hints and upgrading reactivators or hints?)