Lender not liking employer

Hi!

We are in the process of getting approved for a mortgage. We’re working through a broker and sounds like the lender is having a hard time with my husbands employer. He works for a small family owned company that does not have a website, and no online presence at all. He is paid via etransfer and the sender is simply the name of the payroll person.

He’s freaking out, however his coworkers own houses so surely there’s a way to confirm his employment?

What can the lender do here or are we sol?