Approving PR for merge only when at-least 2 reviewers approve:

Right now, I can see that, github has a option for at-least one approved review. Is there a way to change to at-least 2?

Can we acheive this with codeowners?

There’s currently no way to require this, no. You might want to take a look at the Probot WIP app as an example of creating custom requirements like this for your workflow though.

I hope that helps!