Business associated with a business

I’ve chimed in before, been watching you guys often. My question here is, my wife has a small business in the medical field. We spend hours doing medical billing, a lot of the rates out there to outsource are 6% of monthly grosses…thats roughly 4-5k per month in savings by doung it ourself. Now Is it feasible to open another LLC, as a medical billing company specifically for our existing business, where we pay the new LLC for billing services..even though all income filters back to our 1040. Would that seperate business open up a solo-K even though my wife has a fully funded 401-k through the primary business and I have my 457b through my government job (non-match). Any guidance would be great.

Answered your question in today’s recording…1/14/26. Please look for it in the next few days. Thank you!! Mat