Peter Mahler’s post under the link below about the implied contractual covenant of good faith and fair dealing provides a brief but very sound and practical discussion of that doctrine.  The doctrine is relevant to every LLC formation and internal dispute.

Here’s the link:  https://www.nybusinessdivorce.com/2018/02/articles/delaware/will-someone-please-re-name-implied-covenant-good-faith-fair-dealing/