those nonlawyer partners who actively assist the firm's lawyers in providing legal services, and does not allow for the sale of ownership shares to mere passive nonlawyer investors. The U.K. had a similar rule barring nonlawyer ownership, but under reforms implemented by the Legal Services Act of 2007 law firms have been able to take on a limited number of non-lawyer partners and lawyers have been allowed to enter into a wide variety of business relationships with non-lawyers and non-lawyer owned businesses. This has allowed, for example, grocery stores, banks and community organizations to hire lawyers to provide in-store and online basic legal services to customers. The rule is controversial. It is justified by many in the legal profession, notably the American Bar Association which rejected a proposal to change the rule in its Ethics 20/20 reforms, as necessary to prevent conflicts of interest. In the adversarial system of justice, a lawyer has a duty to be a zealous and loyal advocate on behalf of the client, and also has a duty to not bill the client excessively. Also, as an officer of the court, a lawyer has a duty to be honest and to not file frivolous cases or raise frivolous defenses. Many in the legal profession believe that a lawyer working as a shareholder-employee of a publicly traded law firm might be tempted to evaluate decisions in terms of their effect on the stock price and the shareholders, which would directly conflict with the lawyer's duties to the client and to the courts. Critics of the rule, however, believe that it is an inappropriate way of protecting clients' interests and that it severely limits the potential for the innovation of less costly and higher quality legal services that could benefit both ordinary consumers and businesses. Multinational law firms Law firms operating in multiple countries often have complex structures involving multiple partnerships, particularly in jurisdictions such as Hong Kong and Japan which restrict partnerships between local and foreign lawyers. One structure largely unique to large multinational law firms is the Swiss Verein, pioneered by Baker McKenzie in 2004 or as GRATA International, in which multiple national or regional partnerships form an association in which they share branding, administrative functions and various operating costs, but maintain separate revenue pools and often separate partner compensation structures. Other multinational law firms operate as single worldwide partnerships, such as British or American limited