What information should be included in the letter of support?

The letter of support from your research mentor should include (a) your mentors' familiarity with you and your work, (b) your mentor's view of the nature and value of your project, (c) your mentors' willingness to supervise your project, (d) the time your mentor has available to work with you on your project, and (e) your mentor's involvement and support of the project.