Does the bil want to rent to his niece and her boyfriend and the baby?
Or potentially sell the flat? What if he does want to do that?
I wouldn’t want to rent to a family member? What happens if they split up and she can’t afford the rent? Would Op reimburse the Bil?
In all honesty, having had a child at the same age, I would expect them to have told you when their decision was made. But I would have expect do them to also have a realistic plan by that point. Surely, the benefits calculator, money, where to live etc all came up while they were deciding to keep the baby?
I was married and already in the job that would be my career. My husband had a stable career. When I got pregnant I knew, what mat leave I was entitled to, finances etc and a plan of going back to work. Because me and my husband had discussed these things and looked at our finances.
If they haven’t even looked at these things it could be that they aren’t mature enough, imo. And they have the made decision without actually understanding the decision they were making. It could work out. But knows.
But as a parent of a, now, 20 year old if she came to me with a boyfriend saying she was pregnant and were keeping the baby but didn’t know where they were going to live or or they were going to finance it, I would support and help them to get to a place where they were standing on their own 2 feet. But that would be after a really serious discussion about the realities of it.