In researching schools for my LD son, I've found that some schools have special programs for at-risk students. The Cal States, for example, may each have their own special program that makes the schools smaller. Cal State Long Beach has The Learning Alliance, which is composed of students at the lowest levels, those without any problems and those who are gifted/honors. They take 200 students per year, based on application. Those students are then grouped according to the types of classes they need (honors, remedial, etc) and take certain core classes together for the first 2 years. The program is free, and in return, they must give back some volunteer hours during sophomore year. The program has a lounge on campus and is supported by donations, as well as some university funding. I haven't checked other campuses yet, but I would think most public schools have similar programs.
Some schools give priority registration to LD students. This is a must if a student wants the opportunity to select professors in advance, along with classes that would fit one's needs. It would be important in taking general education requirements, as some may be more challenging than others.
I'm still researching and would be happy to share what I find.