Wheels: If you have steel wheels, you may also have rust. I would recommend sandblasting as the easiest way to remove the rust and prepare the base metal for refinishing. If you are going to use a hubcap over the steel wheel and do not care about the looks, and encapsulator will work just fine.
Condominium or apartment complexes, which are also considered multifamily homes, come in various shapes and sizes. It may be difficult to tell that such a building is a multifamily home by just looking at the exterior. These structures can have one central front door and resemble a very large single-family home.
Multi family simply means the property has more than one living unit (duplex or above). Usually this means separate utility meters and will be sold as real estate that can be rented out to multiple families. A home with a guest house on the property is generally not considered multi-family. Remember that if you are looking on purchasing a multi-family property a standard residential mortgage will only apply for up to 4 units. Once the number goes above 4 the buyer will need to get commercial financing.