Ornate nile monitor help

One could very reasonably say that this falls under Kansas's abandonment laws as is - "intentionally abandoning or leaving any animal in any place without making provisions for its proper care," but not a lawyer. What you could do is email your local animal control. Most of them have their email addresses on their website and they are in charge of enforcing animal abandonment laws, so there is a decent chance they can assist you.

That lizard shouldn’t return to those owners. They obviously can’t care for it and sooner or later something bad will happen with the lizard that they want to be “primal”. I would just re-home it as if they’re living in a van they can obviously not pay for a lawyer or this lizard. I’m sorry that you have to deal with this whole fiasco! I’m getting my own nile from some similar keepers but my little dude only about 6-12” so he might be recoverable!

That poor thing, one thing I don't like is how people get animals and then don't take care of them like that. Reptiles seem to be more difficult to rehome than dogs & cats as well, which to me makes this even worse in my opinion. Especially the larger sized ones.