In what ways can ownership in Real Estate be acquired?

In Germany -

The most common way to obtain ownership in German real estate under German Law is in the form of absolute ownership. Pursuant to statuary law, absolute ownership extends to the land and to any buildings or other structures that are firmly built on the land, as well as to (immovable) fixtures and fittings and (movable) accessories. Ownership of real estate can be acquired either by way of an asset deal (purchasing the real estate directly from the seller) or by way of share deal (purchasing the company that owns the real estate). It is currently common to purchase 89,9% of the shares in the property owning company as this does not trigger real estate transfer tax (please see point 6).