Conflict Mediator/Relationship Coach?

ISO of an extremely competent relationship coach who is versed in conflict mediation and restorative practice. Long story short, there's a lot of unsettled conflict between myself and a former partner, now platonic partner. It's a lot of piled up stuff from years past to present that we have not been able to fully resolve in our communication and we need someone skilled in mediating. Preferably someone with a sliding scale who doesn't charge hundreds of dollars. I expect that we'll need multiple booked sessions of mediation.

If anyone has recs please drop them here. Thanks!