TL;DR: Before renting in Buenos Aires, know this: long-term leases require a garantia most foreigners cannot provide, the city gives individual long-term tenants zero broker commission, long-term units are unfurnished, short-term furnished rentals cap at 3 months, deposits are easy to lose without move-in photos, utilities are often the tenant's, and everything is negotiable. Most foreigners use short-term furnished rentals for exactly these reasons.
I wrote a whole book on this (Flat Out Confused). Here is the short list.
A garantia is collateral, usually a third party who owns Argentine property pledging it for your lease. A newly arrived foreigner has no way to provide one. This single requirement pushes most foreigners toward short-term furnished rentals instead.
A seguro de caucion is private surety insurance that stands in for a property-backed guarantor. Not every landlord accepts it, but more do each year. It is the first thing to ask about if you want a long-term lease.
For an individual signing a long-term residential lease in the city of Buenos Aires, broker commission is zero by law. That is the local's deal, and it is worth reaching for if you can clear the garantia.
The local standard for a long-term lease is an empty apartment. Bring furniture, or budget to buy it. If you want furnished, you are looking at the short-term market.
A vacation rental contract has a legal maximum of 3 months, extendable to 23 months only with a stated "specific reason." Contracts often renew with a price bump around the 4-month mark, so read the renewal clause before you sign.
Some owners treat the deposit as money they get to keep. Photograph every imperfection the day you move in. Those move-in photos are often the only thing standing between you and a withheld deposit.
Tenants typically pay expensas (building HOA), electricity, gas, and water. Water in the city is billed by square footage, not by use, which surprises people. City tax (ABL) is normally the owner's.
What the law says and what the contract says can differ, and almost everything is open to negotiation. But if you do not fully control Spanish, do not negotiate a dispute alone. Register and tone do not translate, and firmness in English can read as aggression in Spanish. Get a translator, and lead with patience. More flies with honey.
Add these eight up and the conclusion is clear: for the first stretch in Buenos Aires, a short-term furnished rental is usually the right move. No garantia, no furniture shopping, utilities often handled, immediate access. You trade a better monthly rate for far less friction. Later, once you have a local footing and can clear the garantia (often via seguro de caucion), the long-term lease at the local rate becomes worth chasing.
Tell me your timeline and budget and I will tell you which lease type fits and what it should really cost, plus which landlords are flexible. The first conversation is free.
Max.-
Thirty minutes. Free. In English. We answer everything in this note plus everything not in it.