Under (one's) roof phrase
To live at someone's home.
I really enjoy living under my grandparents' roof.
The cost to maintain this place is pretty high. So, if you want to be under my roof, you'll have to earn it.
Try to avoid to change something because doing something else could make things worse
If you find somewhere to hang up your hat, you find a place to reside.
Used to say that you settle into a place or lodging and make it one's home.
If a person "eats someone's salt", he or she stays at someone's house.
1. To start a business
2. To stay in a place longer than expected, especially in an unwanted way