How much is ideal profit share?

[Saurabh Dey]

I have a friend who is the realtor and flips the house. We will be putting in 50/50 to buy the house and flip it. However, I will be a passive investor and he will be putting in the work to flip the house. He is offering me 25% of profit.
1. How much should be an ideal sweat equity?

2. Should the realtor commission split equally or should he gets it fully?

3. What should be the profit split after baking in realtor commission and sweat equity?
This project will take 2-3 months to flip.