Two words, Time Management, lol. When L and H lived with me it wasn't too hard, i spent time with each woman after work and at night on a rotating basis. When wife M joined our little clan things got more complex. A lot was happening, wife L had passed and wife H was sick, eventually after H passed, the house was sold and J was joining us.
Today i toggle back and forth between wife J's house and M's place on alternate days. We talked about renting a place together, but the ladies like havin their own places, just as i love my rv.
I try to love my wives this way, unconditionally! Husbands love your wives, even as Christ loved the church, and gave himself up for her. Eph. 5:25