Getting an apartment in LATAM There´s a couple of ways of doing this one is by calling People who have signs in the window usually real estate agents handle this for people who own apartments in Buildings and the Real estate also collects Rent and a commission if you get a rental by owner you can save the commission fees.
There´s also a website manly for Medellin but for Colombia as a whole called El Liberator.com
Estudiamos, analizamos y ayudamos a la inmobiliarias desarrollando productos y servicios que demuestran la solvencia de los arrendatarios
www.ellibertador.co
Or you can get a Fiador and usually they charge a fee but they want a bank account with at least three times the rent for three months.
You can also get a CDT ( what we call a CD) in a local bank. The money is yours but it goes to the home owner if you don´t pay rent.
The other way is to pay a deposit which if paid to a real estate agent is hard to get back legally unless if the place is not wrecked you pay a small amount to repaint the place ( like 25 to 50 bucks).
Or you can pay up to six months rent upfront in advance.