In S&S, Robert Dashwood is astonished to learn that Colonel Brandon had not sold the right of next presentation to the living he presents to Edward Ferrars. Robert tells Elinor that next presentation to a £200 p.a. living could have been sold for up £1,400 while the prior incumbent was alive, but that it could not be sold at all once the incumbent died and the living became vacant. Now RD is written as a man who knows everything about how to wring money out of an estate (and nothing about anything else), and JA certainly understood the subject pretty well given her family background, so I assume RD knows what he's talking about here. This raises several questions
Information on these points is humbly requested, and I have entire confidence that collective learning of this body will provide it.
Jack.