How to subdivide or condo out part of a 10 acre partial that is zoned single-family h

[Justin Mumm]

I liste to all of the bigger pocket shows and I keep hearing about building on part of your land in condoing it out. I live on my stepdad's 10 acre property and I am trying to figure out how to legally subdivide or condo out 5 acres of it so he can sell it to me. Is that possible and if so, how do I get started? The problem I face is it is Zone single-family home and is not subdividable