I am just looking at some land that is 'Por Bor Tor' and therefore not chanote. My question is that in the event the government takes the land back, is there any compensation of any form,?

It is quite common in many rural areas. Land is sold by a cash transaction and a handwritten receipt done only available at your local shops. Reason why there is no title basically govt hasn't gotten around to it. Village I lived in the whole roughly 300sq km was under the title of the original settler in the area who over time sold it off in home plots. I understand officially it was land given to a family and could only be transferred to other family...but it is quite common place for people to sell on to others. I have never heard any story about people getting booted off and govt reclaiming land. I understand you would feel uncomfortable if you were planning on building a home or improving the land. Most of these areas will eventually get titles. If you talk to your local lands office usually for 5k they will do a special visit. If I were you I would go with your Thai partner and sus it out anyway. Make sure there are no planned road extensions or its gonna be all dug up for drainage or something. Make sure ur not buying a white elephant

Despite what is written above the government has taken back many such parcels up here, without compensation.

The land will be cheap but go back to the old adage: "don't spend more than you are prepared to walk away from."

Why risk it ? Nor Sor Sam is the lowest title i would buy. 

You can keep the Vaseline