That's so stupid. I've never met a real estate concern that had ANY employees. The fact that a building is owned by 1 guy who outsources everything does not make it a "small business".
(That’s the SBA cutoff for “small business” in property renting; NAIC business codes 5311x0.)
https://www.sba.gov/sites/default/files/2019-08/SBA%20Table%...
I think that's a protection against the business owning a Trust that owns the land. It's to force the business to own the land directly.