Should He Insist That His Girlfriend Sign a Cohabitation Agreement Before He Buys Them a House?

Via Reddit:

I met my gf 3 years ago through a coworker when I was an apprentice in my trade, finally finished college and making it on my own. She was a recovering addict, living on welfare with a brand new 2 month old infant daughter. I was wary at first but after a couple months of seeing each other, waking up to hold her daughter in the middle of the night, and seeing the amazing woman my gf was becoming I decided I was in it for the long haul.

Since then I got licensed, we moved in together, and I’ve been making a 6 figure salary working tons of overtime in the trades at a large factory. I’ve been really saving hard this last year and have been making good money off my investments which means I’ll be able to buy a house early next year.

She has worked odd jobs mostly for cash and has no real employment on paper. She doesn’t make much and has been falling behind with her share of the rent/bills. She’s trying but minimum wage is exactly that so I end up paying for all the groceries, trips we go on including an all inclusive, and any incidentals that come up like her car breaking down. We never fight about money because we aren’t struggling, she’s planning on going back to school and has a really solid plan for her future that I’m super excited to be at her side for!