Question

San antonio wants to expand and add new territory to the city and broaden its tax base by doing what with regard to an upscale subdivision that borders the city?

Answer 1

The answer is annexing it.
Annexation is a form of administrative action that force a state to give up and join up its territory to another.Actually, annexation is considered an illegal because it does not include sales transaction of lands, unless both states is in the state of war (military occupation)