[Kevin]

Knowing nothing about your local rules or anything about your campus or organization, let me throw this potentially terrible suggestion out there--why not elect her the chapter sweetheart? It'd kind of be a two birds/one stone approach. It would resolve the letters issue with some finality, so a future exec board wouldn't be able to come back and change their policy after the fact. It'd also quite possibly be something she'd be honored by and she sounds like she deserves whatever honors are within your power to give.