Has anyone sent a demand letter for non payment? We have an interest in an old well in Custer county and have not received any payments in over 2 years. Larkspur operating bought the lease in october of 24 and has never said a word. I called them in July and again in August and still nothing. I’ve read on here that the next step is a demand letter. Can I do that or does an attourney need to be involved? I was planning to just send a registered letter demanding payment and interest. Then if nothing go to the lawyer.