Over the past three years, faculty at Florida Gulf Coast University have re-envisioned the freshman-level introductory engineering course required by multiple programs in the College of Engineering Geiger, 2015, Kunberger, Geiger andReycraft, 2016]. One aspect, the addition of Mentor TAs, was intended to develop informal near-peer mentor experiences, considered a "practice-based" mentoring initiative [Packard, 2016]. These students would serve not only as a traditional TA in providing feedback on course deliverables, but would also serve as a mentor within this first course in engineering in order to increase retention and promote a more inclusive culture in the college.The most recent evolution of the introductory engineering course added a summer training workshop for course Mentor TAs. This 30-hour workshop took place over a one-week period in the summer and included both face-to-face and online components. Topic coverage fell into one of three main categories: 1) university employment expectations, 2) course logistics and expectations, and 3) effective interactions between Mentor TAs and students enrolled in the course. Workshop effectiveness was evaluated through a mixed method approach including the use of pre and post workshop surveys and end of the semester focus group discussions with students serving as Mentor TAs as well as post course surveys of course-enrolled students. A complete discussion of the developed workshop and the future direction of the program is also included.