why not use ini,s for the money system instead off all the vars.. like this,,,

on *:text:*:?: {
  if ($1 = City Apartment) {
    if ($readini(bank,$nick,money) > 12000) {
      writeini bank $nick money $calc($Readini(bank,$nick,money) - 12000)
       writeini property $nick  property CityApartment
      msg # $nick has just got the City Apartment.
      notice $nick your bal is now $readini(bank,$nick,money) $+ .
    }
    if ($readini(bank,$nick,money) < 12000) { Sorry $nick you don't have enough money. }
  }
}