Apologies in advance for not answering your actual question and giving you unsolicited advice.
That said, I'd strongly recommend you take an extended visit out here, 2-6 months would be ideal in my view.
It's a great country and culture , but it's not for everyone.
After a prolonged stay you'd be far better placed to know if it's really a good idea.
You'll have many here tell you it's a terriblle idea, that the country is crime ridden, corrupt, on an economic death spiral, amoungst other things.
Still, if you do your homework and research, it may be for you!
A couple of parting comments; if you relocate and have earnings from remote work, investments, savings, income etc, as opposed to locally sourced wages, you'll be far more likely to make it work.
Also, check soloduenos, Zonaprop, argenprop, or other similar realestate websites to get a feel for the market and the established big name real estate agents.
Personally I wouldn't go with a local expat agent type person. You'll pay a premium and could probably do far better solo. Again, this takes time , research, patience.