I don’t know the law here, so someone might chime in with a better response grounded in law. I would say that if this issue only affects four lots, then have a conversation with those four lot owners about whether they want to continue with the coin-op system or buy their own machines. If the units are tenanted, they may have leases that state that a shared laundry is available for their tenants, so that could cause some issues and costs for the lot owners. They might also be concerned that personal washing machines located in a common laundry could be problematic (ie you go to the laundry and find someone else’s clothes in your machine, or the machine is damaged). If I was a lot owner relying on a communal coin-op laundry, I’d appreciate a lengthy period of notice to give me time to renovate my unit, change my lease or make whatever other arrangements are needed.