The term "qualified person" can be substituted with various synonyms that highlight specific skills and expertise. Some possible alternatives include "expert," "specialist," "professional," "skilled professional," "capable individual," "trained individual," "accomplished individual," "certified professional," "knowledgeable individual," and "experienced practitioner." Each of these synonyms emphasizes a different aspect of qualification, such as advanced training, certification, experience, or mastery of a specific skill set. Using these different terms can help to communicate a more precise and nuanced understanding of a person's qualifications and abilities.