oh and I know someone who refused to move in with her now DH until they were at least engaged and he'd agreed to set up a joint account, and put her on the deeds of his flat. He earned around £200k a year, she was on under £40k.
Put like that, she sounds so grabby, however, she had a HA flat in a very desirable part of London that she'd got years before and was giving up her 'right to buy' by moving in with him (and probably her chance of ever getting another flat like it). He was terribly old fashioned and was clear he expected her to do the cleaning or organise a cleaner, and also would be expecting her to follow him around the world for his career.
Her view was, her life was sorted after years of it being up in the air, so if she was going to give up her settled life, she wanted security, both of certainity of marriage and access to money if there was a good chance he'd expect her to quit her job to follow him to his next great job role.
He was practical enough to realise he was asking her to give up a lot on just his word, so was happy to put his 'money where his mouth was'. They were engaged and the venue booked before she moved in. Within a year they'd had to move from London to Scotland for his job. 2 DCs later, she is a SAHM and he's doing stupidly long hours in another part of the world, friend and DCs had followed him, having to go build a new life for themselves yet again for his career.
But if you only had her "requirements" presented to you without details of what it would cost her to be with him, it would look like she was a gold-digger, rather than just a woman being practical.