I'm a retired U.S. citizen with permanent resident status in Argentina. Earlier this year I sold my house in the U.S. and moved permanently back to Argentina, where I recently purchased another house. This proved to be far more difficult than expected, even though I'd researched things for months prior to making the relocation decision. I hope what I've learned can be useful to others.
Two major issues needed to be addressed:
1) whether to sell everything before moving and start over...