I work for an FMO that carries AARP and Lincoln. I can help you if you would like and even if we aren't a good fit for you I can at least give you some tips.
Premier Senior Marketing and Ritter both carry some of those too. I don't know if it is that I am paranoid, but I keep contracts with 3 different FMOs so if I have a problem I can write for a different one whenever I want.