Distance is what makes this hard. You're trying to evaluate a relationship with someone who'll be operating an asset 2,000+ miles from where you live, and the wrong choice can quietly cost you 15–30% of your annual revenue plus deferred maintenance you won't see until you sell.
The vetting process that actually works:
1. Ask for one real owner statement from a similar property. Not a marketing one-pager — an actual September 2025 statement for a 2BR condo in your zone, with names redacted. You're looking for: gross revenue, channel fees, itemized expenses with receipts, hospedaje tax broken out as a separate line, photo documentation for any maintenance over a stated threshold. If they hesitate or send a "summary" instead, that's the answer.
2. Ask who their vendors are. A PM running 30+ properties has a list: AC techs, plumbers, electricians, deep-cleaners, landscapers. They should be able to send it to you. If the answer is "we have great people, we'll get you contacts when needed," they don't have a vetted list — they're booking ad-hoc and marking up.
3. Ask about their repair approval workflow. Threshold for owner pre-approval (something like: under $X auto-handled, over $X needs your sign-off). What proof comes with the repair (photo before/after, invoice from the vendor not the PM). How fast you'll see it on the next statement.
4. Ask for 2–3 owner references with properties like yours. Then actually call them. Ask: "What's the worst thing they've handled for you?" — owners who like their PM will have a war story with a good ending. Owners who don't will dodge or give vague positives.
5. Read the contract. A 30-day termination clause is standard and ethical. Lockup periods over 90 days are a red flag. Any clause that says you can't fire them without paying a penalty is a hard no.
Red flags: marketing-heavy first calls with no operational specifics, promises of "guaranteed X% occupancy," unwillingness to share vendor names, statements that hide expenses inside management fee, no mention of HOA or compliance work.