看bylaw，如果有一定比例的业主同意出售，有可能你不同意也会被强制出售

要看你的大楼成分，有的地方每一个业主是一个股东，多少股份都在HOA有划分。

https://www.argianas.com/blog/understanding-chicagos-condo-deconversion-process/

This link says IL states allows condo building sales when 75% vote yes. 

https://www.chicagobusiness.com/article/20180713/ISSUE01/180719926/condo-deconversions-hampered-by-holdouts-in-chicago

This kind of law of super majority is to avoid the issue of "hold outs", 中文叫做钉子户。