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About Us

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Jennifer Rosier
President and Founder, PrepU
Owner, Tutor Doctor Suburban Boston

Jen has been helping students prepare for their post-high school careers for more than 25 years.  She brings to the task a track record of success, pragmatic approaches, and a deep and genuine interest in helping each individual to meet his or her potential.   A seasoned SAT/ACT and subject area tutor, and author of an SAT Writing and Reading Guide, Jen is also the developer of the Tutor Doctor Global Test Prep Program. Jen is  a trusted resource to parents and students as they navigate the college admissions process.  The mother of 4 children including two college students,  Jen thinks of herself as "in the trenches" with her clients and their children.  She  takes special interest in working with students with learning differences.  Jen holds a magna cum laude Bachelor of Arts in French Literature and English degree from Tufts University.

We Love Our Jobs.


Grounded. Customized. Proven
For 25 years, we’ve partnered with families to inspire students and give them the skills they need to achieve their academic goals.  Our promise is simple:
  • to provide the most effective strategies and curriculum,
  • to customize the right program for your family.
  • to match you with the right tutor who will help you achieve your goals, and
  • to care... a lot.