The salary and dividend question is where most of the value sits, and it’s the thing most commonly done by rule of thumb. I model it against your actual numbers each year, including your spouse’s position, because that’s where the answer usually changes.
For realtors and PRECs, I understand how commission income and brokerage arrangements flow. What I don’t do is your RECO or TRESA compliance, brokerage agreement obligations, or trust account audits. Same for other regulated professions. Your college or regulator’s requirements stay yours.