Hi,
I will be a first year at MSUCOM this year. When I was just starting "the process" I spoke with the admissions director about rec letters. She advised me to ask someone, who could comment uniquely on my abilities and motivation to become an osteopathic physician. I asked the local March of Dimes director (who I had worked with), and a research colleague. Both gave me excellent endorsements. Neither were DO's. Hope this helps.