Second:
This game was not complete as of the last time I played it (probably 2+ years ago). You leave your wife/girlfriend behind to go visit or take care of your sister (?). You are a lawyer - I believe your wife is too, I seem to recall reading a phone conversation where she became partner of a firm back home. I think you buy and fix up the house that you're in. It feels like it was set on an island; the setting was definitely on a beach anyway, because one of the girls you meet is a surfer. I'm about 85% sure this was a Renpy game. This game is likely in my "waiting for update" folder, but there are 200+ games in there so it'd be a guessing game or process of elimination to find it.