I strongly recommend you attend the NIPA BMC conference in January in Scottsdale AZ. It focuses on the business side of running our firms.
I'll reiterate MoJo's advice - nothing happens unless you can get clients. Presumably partnering with the CPA firm will be part of your marketing strategy, but selling is key. And it is a relationship business. You need to nurture relationships with advisors, CPAs, attorneys and recordkeepers. People like to do business with people they know. Don't underestimate the time and effort involved in this. Those who are good at it make it look easy, but it's not.
Good luck.