Rule 19-303.1 Meritorious Claims and Contentions [MARPC 3.1]

An attorney shall not bring or defend a proceeding, or assert or controvert an issue therein, unless there is a basis for doing so that is not frivolous, which includes, for example, a good faith argument for an extension, modification or reversal of existing law. An attorney may nevertheless so defend the proceeding as to require that every element of the moving party's case be established.