Increase main electrical service to 400-amps, 120 / 240 volts, 1-phase. Remove old electrical meters and main breakers and replace with new. Upgrade tenant main circuit breakers from 60-amps to 125-amps. Reconnect existing laundry room panel. Run new conduit and wire to unit being remodeled to upgrade capacity for new 125-amp panel. Run empty conduit from new electrical service to occupied tenant unit through other unit for future expansion.