I can’t imagine how stressful it must be to try to find the right place with everything involved, like work and distance. It’s great that your brother’s flexible, but it must still be tough.
I think I'd be kind of overwhelmed if I were in his shoes. I hope he finds the perfect spot soon. It’s awesome that you're supporting him through it. It kind of makes me wonder what it’ll be like when I need to buy my first house someday
People are pretty adaptable I think, so it may seem very overwhelming to you but I think if you were actively in the situation you'd probably handle it well.