I wouldn't have a business without collaboration. Partnering with consultants has given me access to clients I'd never have reached alone. I'm genuinely grateful for those experiences.
But here's what I've learned the hard way: it's like a marriage. You don't know who someone really is until the honeymoon phase ends. Everyone manages their worst instincts while things are smooth. The moment pressure hits - missed deadlines, scope questions, awkward client conversations - you find out what you're actually dealing with.
As the builder, you're usually the one exposed. The consultant owns the client relationship. When loyalties are tested, they'll swing toward the client almost every time. That's rational - the client is their long-term income. But it means you can end up blindsided in meetings where the consultant is promising things you haven't costed, haven't agreed to and now can't push back on without looking difficult.
It's happened to me more than once. I naively assumed partnership meant we were aligned. Instead I was left holding commitments I never made.
Your only safety net is the contract. Roles. Scope. What happens when new work gets promised without agreement. Get all of it in writing before you start. Not after the first problem - BEFORE.
I still regret the times I skipped this step. Don't repeat my mistakes.