Single-Asset, Single-Borrower (SASB) CMBS loans typically take longer to approve than the standard 7(a) loan. According to CMBS SASB: Single-Asset, Single-Borrower Conduit Loans, the process can take anywhere from a few weeks to a few months, depending on the complexity of the loan and the borrower's financial situation. Generally, the more complex the loan, the longer it will take to approve.