Nebraska Revised Statute 21-190
Professional service; limitation.
(1) A limited liability company which renders a professional service shall render only one type of professional service and such services as may be ancillary thereto and shall not render any other type of professional service or engage in any other profession. No limited liability company may render a professional service except through its members, managers, professional employees, and agents who are duly licensed or otherwise legally authorized to render such professional service within this state.
(2) This section shall not be interpreted to include in the term professional employee, as used in the Nebraska Uniform Limited Liability Company Act, clerks, secretaries, bookkeepers, technicians, and other assistants who are not usually and ordinarily considered by custom and practice to be rendering a professional service to the public for which a license or other legal authorization is required.