Your friend was renting. Not the same as owning. Do you expect her to be allowed to stay once it is converted without paying?
I don't know about conversions but the owner who owns the building can convert and shouldn't have to accommodate renters past their lease. If they don't want to buy or cannot afford to buy, well they do what renters do. They move. There is no free lunch.
She was forced to make a decision before the lease was up. She got a few month's notice.
If you love HOA's so much then by all means encourage them. That's the funny thing about personal liberty. There's no problem until your's is in jeoparday. People like yourself will sell everyone else down the river, especially if it makes life more convenient for you. You'll do it without a care and without any foresight, without any realization that if you sell me out, you're opening the door for others to infringe on your liberty.
Oh well, liberty was a nice idea while it lasted, I guess it's too inconvenient these days. you might have to actually give a rat's ass about other people