Does anyone have some guidance for the types of businesses and situations where real estate can be included in a 7(a) sale?

If it's a manufacturing business with an associated factory, sure. But what about hospitality businesses like a B&B, campgrounds, marinas, glamping, cabins, MHP's, etc. ?

Likewise, if you're buying a business with RE included, I imagine you'd segregate the two when underwriting? I can this getting slightly complicated when determining fair market rent for a fairly specific use property.

Thanks all!