If I am correct, I believe that by tradition the job of 'getting' husbands for their daughters fell in lap of the mothers (a la Mrs. Bennet). In general, did fathers take on this job in the absence of a female promoter or did they just leave things to chance? Now that I think about it, Lady R sees herself in the role of Anne's mother and tries to get Sir Walter and Elizabeth to take Anne to London with them to no avail, of course but I'm curious as to why she doesn't just go for a 'season' herself and take Anne with her especially since she's beginning to be anxious for her as time is passing with no one in sight. (Or might it not have been allowed for Lady R as a single lady to take Anne in for a season?)
Anyway, to get back to Sir Walter, after the failed hopes of getting Mr. Elliot for Elizabeth, there doesn't seem to be much effort/concern on behalf of his daughters. If he were to 'keel over tomorrow' his daughters---even his beloved Elizabeth---could be tossed into the hedgerows. He seems to be in worse shape than even Mr. Bennet was. Save for charity from family and/or friends, Anne could technically end up in worse shape than if she had married Wentworth. What a complicated system they lived by... :-) Too many pitfalls not just on this subject but others as well. No wonder, this system was in a state of erosion at this point.