Please check out the white paper produced by the Centre for ADHD Awareness Canada (CADDAC) which addresses ADHD as a Disability in the Post-Secondary Environment.

If you already have a diagnosis, check out the page specifically on documentation and accommodation at MRU.

With regards to scholarships, Access and Inclusion,  the SHIRE Canada Foundation, as well as CADDAC all have information about scholarships and sources of funding for your post-secondary education.