Do I need to include official transcripts for ALL undergrad courses I have taken -OR- is it okay to include transcripts for coursework solely from the school that issued my undergrad degree?
You should include transcripts for ALL undergraduate and graduate level coursework you have taken. Transfer credits are accepted without providing a transcript from the originating school ONLY IF the school name, course name/s, credit hours, and grade/s of the transferred courses are shown on a subsequent transcript of the school that accepted the transfer, and which will be included with your materials.