Yes, lawyers are allowed to advertise on Facebook and other social media platforms. In fact, many law firms and individual lawyers use social media advertising as a way to reach potential clients and promote their services.

However, there are certain ethical rules that lawyers must follow when advertising on social media. For example, lawyers are required to ensure that their advertising is truthful and not misleading. They must also ensure that their advertising does not create unjustified expectations about the results they can achieve for their clients.

Additionally, lawyers must comply with state and local rules regarding advertising, which may impose additional requirements and restrictions. For example, some states may require lawyers to include certain disclaimers or information in their advertising.

If you are a lawyer interested in advertising on Facebook or other social media platforms, it is essential to consult with an experienced legal professional who can guide you through the process and ensure that you are complying with all applicable ethical and legal rules.