Any tips on fostering community? Dealing with conflict? Collaboration with stakeholders?
With the limited information about specific situation, transparency has been the most successful and professional approach. Regarding push back: if from direct reports then maybe they are not a good fit. More problematic if it is from management, not a great sign.
Be honest. Try and understand people's true motivations and fears. Be empathetic to their situation.
PM’s aren’t known for handling complex relationships well. I’m sorry.
Can you give a bit more context to your post?