Two 40-acre Michigan parcels can have completely different subdivision rights. One might split into multiple new parcels while the other can't divide at all. The Michigan Land Division Act bases eligibility on factors beyond acreage: existing land use, road access, and statutory thresholds.
Two parcels of land in Michigan might both be 40 acres. One of those parcels might still be eligible to create several new parcels. In other words, there might be several splits available, while the other parcel might not be able to do any splits, might not be able to be divided at all. The difference often comes down to how the Michigan Land Division Act calculates division rights.
