No matter who finances your land, you got to pay off the loan!
It really don’t matter that much which state your in, financing document you use - no pay means no stay! If you default -They are going to repo the land.
You need the lawyer and title company up front to ensure you are getting what your paying for.
Things like - the seller is in title, their aren’t any outstanding liens, taxes are current, etc.
In NM and probably other rural areas, access can be an issue.
You want some legal, recorded permanent access (easement).
Fronting a public road is a plus. Land that’s stuck in the middle of a bunch of other parcels can be a problem!