To obtain a commercial business loan, a business owner needs to gather documentation like credit histories, current debts, profit/loss statements, old loan details, bank statements, and tax returns. They also need to explain the reasons for borrowing and provide collateral like available cash, savings, or equity in property. It's best to consider various lenders, as local or small lenders may be more willing to offer loans to small businesses whose growth could help the local economy. The Small Business Development Center can also help businesses find the right lender and apply for a commercial loan.