Most jurisdictions require that the burden of a covenant runs at law only to those who succeed to the entire estate of the original promisor. The burden of a cov. touches and concerns land when the promisor's legal interest as land owner is rendered less valuable by the promise. The benefit touches and concerns land when the promisee's legal interest as owner is rendered more valuable by the promise. Keep in mind paradigm cases and draw analogies. The burden of a cov.
Cases are divided.
F. Did benefit of cov. Was the cov. Restatement 2nd agrees. But there are contrary cases, and the ALP sides with them. Any transfer of a possessory interest will suffice.