Church fights are not pretty. Each side claims a basis for their point of view whether it is religious (God told me so) or historic (I’ve been in this church for 27 years) or “just because” (I’m older and smarter than you).
Making rational decisions during an emotional time is dangerous. That’s why all churches must have policy manuals which have predetermined action steps – what to do in the event of specific circumstance.
Every church must have a financial and personnel manual. These are legal necessities to ensure the church doesn’t mess up and end in court. Other manuals are useful for churches to have, too.
Churchbestpractices.org contains a nine church manual and a variety of other very useful documents which can benefit every church. Go visit and see what you need in your tool kit.