What is the structure of a savings and loan financial institution

A savings and loan association (S&L), or thrift institution, is a financial institution that specializes in accepting savings, deposits, and making mortgage and other loans. The terms "S&L" or "thrift" are mainly used in the United States; similar institutions in the United Kingdom, Ireland and some Commonwealth countries include building societies and trustee savings banks. They are often mutually held (often called mutual savings banks[citation needed]), meaning that the depositors and borrowers are members with voting rights, and have the ability to direct the financial and managerial goals of the organization like the members of a credit union or the policyholders of a mutual insurance company. While it is possible for an S&L to be a joint-stock company, and even publicly traded; in such instances it is no longer truly a mutual association, and depositors and borrowers no longer have membership rights and managerial control. By law, thrifts can have no more than 20 percent of their lending in commercial loans — their focus on mortgage and consumer loans makes them particularly vulnerable to housing downturns such as the deep one the U.S. has experienced since 2007.