In real estate, personal property can become real property through what mechanism?

Personal property can become real property primarily through the process of attachment to the property. This involves physically affixing a personal item to the real estate in such a way that it becomes a permanent part of the property. An example of this is a built-in appliance that is installed in a kitchen; once it is securely attached, it is considered part of the real estate and cannot be removed without altering the property.

In contrast, adaption involves modifying personal property to fit a specific use related to real property, but it does not necessarily change the classification of the property. Severance refers to a process where real property is separated from the land, converting it into personal property, which is the opposite of what the question addresses. Management decisions involve the operational aspects of handling a property but do not directly affect the legal status of personal and real property. Thus, attachment stands out as the correct mechanism through which personal property can transition into real property.