Pandawife
I think your hb suggestion of IFC is not a bad idea. Having 3 women in the house is really too much, our own mother is not so bad but with MIL, a bit tough to handle. If I were in your shoes, I think I would consider IFC too. Put 2 in IFC and look after one yourself. But it still doesn't solve the tiring night feeding problems and the chores that u need to do. Or let your MIL or mum each take a baby home to look after if they can do it or get a baby sitter for a few mths. But not long term if u don't like them to be separated, maybe until they are bigger and more settled, then bring all 3 back together, now I think the house needs some peace and u need some proper rest, 1 adult 1 bb is alot more manageable. A maid can be good help too for all the housework and as an extra pair of hands.
I understand problems with multiples as my mum used to be a baby sitter helping a twin mum with 4 kids in total.