Explore Lulukoko, Tsukuyusa, and Westown in this multi-cultural farming game for Nintendo 3DS. [ Game Guide ] JP release = Jun 2016. NA release = Feb 2017. EU release = Oct 2017.
As far as I know, we don't know. Frank just says he fixed it up for you a little when you arrive. I just replayed and I don't remember any mention of who the land used to belong to. It'd be weird it if were Frank's, since he should be using it if that is the case rather than existing with a single barn and 2 plots of soil.