Yes, all the LORs are on official letterheads. I have 1 LOR from current manager, 2 from Majors I've worked with as DOD civilian and 2 from my BSN mentors. I would like to turn in at least 4 (epecially the 2 LOR from MAJ) but I don't know if they've changed the criteria this year. I feel like my recruiter is not giving me as much information as I've read on these forums so I'm just disapointed