Yes, but be selective.
Reviewers are likely to skim appended materials, especially if they are lengthy.
Letters of support from Working Connections Mentor Colleges will not be considered in the review process. Letters of support should come from community and business partners. Letters should indicate how the partners plan to contribute to the Working Connections II project. This may include matching funds, technical assistance, active participation on advisory boards, providing internship opportunities, etc. The level of commitment should be clearly described.