Land/ property equity question

[Zachary Beaulieu]

Hello, so I just need some clarification.

I am considering buying a piece of land from someone down south and the goal is to build a home on it.

The land is actually cheap that I can pay it off, but the seller has financing  options through his own company.

Land in the area is also cheap to where I had the idea of building a property, having it appraised and using equity to borrow against it into another piece of land there and repeat. (Correct me if I am wrong, if that is how it works.)  There is no banks or mortgage companies involved, just me and the sellers company for financing. 

My question is, what is the best way to go about this?

Thanks.