I'm in the process of building a new responsive web/mobile app.
After I quit my job and now full time working on it, I decided it will be a good idea to get a designer.
I wanted her to be committed to the work, and made sure she likes the idea. Didn't read a lot about co founders agreement before hand, and agreed on a 10% reverse vesting (for 3 years) cofounders agreement with my designer.
Now, she's great. It just, that she doesn't do 10% of the work.
Assuming it's an email correspondence, how can we change that agreement?