Yeah I'm not sure. I only heard that term recently and it shocked me that it was a thing. I immediately ran to see if it was a thing in CO.
There's some lawsuit going on in PA where a guy who works a pretty normal income job, I think maybe he was a restaurant owner or manager. Anyway, IIRC his entire family except mother lives in Italy or somewhere overseas. He's the only one in the USA. He's being sued by her nursing home for $93k in back rent. IIRC he's lost every appeal. He had not a single thing to do with her nursing home contracts. He definitely made under 100k, I think 40-60k. I don't see it in this article and I'm too tired to dig around.
https://hh-law.com/blogs/supplemental-hh-law-blogs/pa-filial...