Yes. One of the adventures in the Harlequin module is set in his residence outside Bogotá.Which probably got leveled during the Azt/Am war.
I think Ehran's plantation was located somewhere along the Jutaí River which puts it in the northwest but well beyond Bogotá and the Aztlan-Amazonian border.
Either way, the entire area is extremely toxic (thanks Aztlan!). Without some massive cleanup efforts, the area's astral is probably far too toxic for him, or any mage for that matter.
That's if Aztlan didn't go out of their way to firebomb the place into oblivion because reasons. I'm sure they have ways of finding out the true identity of the property's owner. Even if they don't, they would know that the owner is stupid wealthy, has absurd amounts of magical security, and isn't on their side.