Sensitive Issue - looking for advice

I’m a co-commish in one of my leagues and we’ve been trying to boot a GM for several years (person that’s not really friends with anyone, always takes forever to pay dues and makes up ridiculous excuses not to - dues are only $30, and is down-right annoying sometimes).

This past year, this GM stopped setting their lineup, and we thought “now’s our chance to boot him!” When we called him out, he told us he had cancer, and now we both feel a little bad. We told him to take his time and we would set his lineup for him (but not make any transactions). Did that for half the year.

Ok, now it is the off-season. Now what do we do?