As the owner of a La. Bond for Deed, may I sell it to a third party?

Bond for deed appears to be the same as a contract for deed. It is a contract in which you pay for property while the seller retains title. Only upon completion of the terms of the contract is title transferred. Whether your contract is transferable would depend on the terms of the contract. The seller may have put in a clause there to prevent its transfer or to have the right to refuse the sale.

So the answer is to read the contract. If there is no mention of it, then I would get the approval of the titleholder before trying to sell it.