It sounds like what someone on FB described as a "power deed" (which is also not a real thing but she was very convinced it was because a salesperson told her so). In that case, it's a deed with a fairly low MF at a desirable-seeming location. In the FB instance, the example was Midtown 45. There was also some sort of impression that the deed would have some sort of "power" outside of simply low MFs, but there really wasn't, lol.