What obligation does a grantor who warrants title have towards the grantee's title?

A grantor who warrants title has a significant obligation to defend the title against any adverse claims that may arise after the transfer of ownership. This warranty means that the grantor is providing assurance to the grantee that the title is clear and that they will take necessary legal action to protect the grantee's ownership if any issues or disputes occur.

This obligation is central to the concept of a warranty deed, which not only conveys property but also assures the buyer of the legitimacy and security of the title. This protection is vital for the grantee, as it ensures they have recourse if a third party claims a superior interest in the property.

The other options do not accurately represent the responsibilities of the grantor in relation to the warranty of the title. Managing the property is generally the responsibility of the grantee after the transfer, maintaining contact is not a legal obligation, and acquiring additional property does not pertain to title warranty at all. Thus, the emphasis on defending against adverse claims is what solidifies the grantor's role in ensuring the grantee’s rightful ownership.