Joanna A. van der Vant is currently in the accounting department at SOL Property Management, where she handles accounts payable, accounts receivable, budget, and more. In her years of commercial real estate and accounting experience, Joanna A. van der Vant has learned the importance of controls in accounting procedures, whether a company is small or large. Controls help a company stay in control of assets, says Joanna A. van der Vant. Below, Joanna A. van der Vant explains some of the most important controls in the areas of notes payable, revenues, and cost of goods sold.