If I read the article right, I think the HSA said he was an unapproved sublet, so he may not have a choice or they may just make life miserable in the most legal way possible.
Which means that if he’s forced to move, he probably wouldn’t have to pay a large penalty to the person he’s subletting from. Let’s hope all the squirrel lovers out there get together to support him and help him find a place that’s safe for squirrel lovers to live.
I once met a very strange old woman running a used furniture/thingies store who sat in a huge recliner wearing an immense fur coat. She described the litter of squirrels she had saved and how they would snuggle in her fur coat, which also protected her against inadvertent scratches. It’s over 40 years and I can still see her sitting there.