My first thought was actually RANDOFF, which I had surmised as a possible variant of RANDOLPH, but on checking in reference books I decided that they didn't really look like "ff".
My problem with RANDOTT is that as far as I know, it isn't a surname, whereas RANDALL (& variants) is. Add to that the evidence that a few of the "ll"s on that page have been crossed, and I'm still inclined to say RANDOLL.
Incidentally, I think the entry immediately above this one, in the same handwriting, has NUTTOLL with a similar crossed "ll", which allows comparison with "tt".
My problem with RANDOTT is that as far as I know, it isn't a surname, whereas RANDALL (& variants) is. Add to that the evidence that a few of the "ll"s on that page have been crossed, and I'm still inclined to say RANDOLL.
Incidentally, I think the entry immediately above this one, in the same handwriting, has NUTTOLL with a similar crossed "ll", which allows comparison with "tt".