Co-Parenting with another single foster parent?

So this idea has been ruminating around my head since I decided to become a foster parent. See, my brother is also a single foster parent and in a way, it almost seems to be crazy for both of us to be single foster parents separately when we could just move in together and co-parent our foster children. We are both in our early 30s and neither of us are in a long term romantic relationship and we were roommates up until a few years ago when I moved to another part of town where he couldn't move due to work. Well now he is moving closer to me and will be bringing his current foster, but soon to be adopted, son. It's just, the more I think of it, the more I think, "why not just move in together?" If we combined our incomes we could rent a MUCH nicer place than either of us can afford separately and he also mentioned he wants to continue to foster after the adoption of his son is complete. His foster son also loves being a big brother. I noticed this whenever I've watched him and other kids at the same time. Of course, he d have his own room so he can have a retreat if needed, but he has already asked for a little brother or sister. Hmmm, I know we would need to have a plan for what we'll do it one of us gets serious about someone or even just wants to live separately again. And also a parenting plan so we are on the same page for discipline, rules, etc. I'm wondering about fostering specific issues. Like, we are with different agencies now. I suppose it would be best to both be under the same agency? And would this sort of situation (co-parenting with a non-romantic partner) make it more difficult to foster? I suppose for us, we would still take placements separately and simply bring them into the same house to be together since we;d be roommates again. I just keep thinking of the benefits. If you need someone to watch the kids for a second while you run to the store. If you would like someone to talk to about issues. If someone needs to take a screaming child outside to calm down. Giving his placements a mother-figure and mine a father-figure in the home would also be nice. Also being able to afford a nicer and bigger house we could invite people over to visit would be nice. My house is so small that if my bunco group wanted to come over, it would have to be outside. No way to fit a dozen women in my little cottage. IDK, this idea how been kicking around my cranium for months and now that we are getting closer to when our respective leases are over, I'm considering bringing it up to him to see if he agrees. I'm just curious if anyone knows of any other foster parents who room with another foster parent.