What would that accomplish? Most LLCs are created (incorporated) by a lawyer who then cedes control to the intended owners. Even if you had a requirement for a US person, you'd just have figureheads collecting some nominal salary. Plenty of low-income folks would be eager to get an extra $500 a month for doing nothing.

For what it's worth, the formation of an LLC is a state affair, and every state has its own rules around requirements, reporting, transparency, etc. Most states keep the paperwork public; some states don't, but these are not the states where housing shortages are all that profound.

so immigrants shouldnt be able to open restaurants? seems like a great plan...