Base of tree is about 24" then splits into 2 main trunks about 12" tree is about 35/40 feet tall. . Tree appears to never have been cut back or trimmed. It's a never ending task to pickup walnuts and droppings from this tree so I want it gone.
Here's the problems you have.
24" base, old tree, located in someones yard. How long has this been a yard or part of a homestead. If you created the yard you might be OK, if this yard has been there for a long time, you'll have a hard time selling it, possible hardware problems,(nails, fence, etc hidden in side tree).
You might find someone who will take partial payment for the butt log, you didn't say how tall it was before the double branches, when they cut it. The two 12" branches are minimal diameter for gun stocks, by the time you square them your down to 7 or 8 inches or less.
Good Luck but it's going to cost you to have it taken down.
Low(er) BTU's, but splits super easy. I almost shed a tear as some beautiful grain walnut I load up into the wood burner lol. I think to myself, would of made a beautiful stock, but the house needs to stay warm lol.