How to use "settlement" in a sentence

I returned to London and wrote Laura Fairlie's marriage settlement

I wanted to make the best marriage settlement I could in order to protect her interests, if Laura Fairlie dies, I wrote, 'the twenty thousand pounds will be left according to her will.' That evening, I sent the settlement to Sir Percival's lawyer.

I told him not to sign the settlement unless the part about the twenty thousand pounds remained as I had first written it

Please agree to whatever changes he wants to make in the marriage settlement.

The man was too lazy to look after the interests of his own niece! I went to Limmeridge the next day and told him that no one should sign a marriage settlement like this - it gave the husband a large financial interest in the death of his wife! But Mr Fairlie did not want to listen