@John Underwood what were some of the experiences you've heard?

Not sure if they have upgraded to desktop appraisals but if they are still doing in person appraisals , make sure you get everything (scope of work, good faith deposit, social, LLC docs, insurance, proof of prior experience, financial statements) in ASAP.

My options are very limitted and the situation is very draining even I follow the bigger pocket advises and I unvested a lot of time in learning and also have years of experience with tenant.

I'm happy to share my experience with this market if you'd like to message me to set-up a call. 

I haven't seen any statistics to this effect and I don't think any has necessarily been compiled but I bet I wouldn't exaggerate if I state that 95% of the value of real estate in Southern Spain or at least the province of Andalucia is in the Costa del Sol.

You'll want to ask about their experience, read reviews, understand their availability, pricing, insurance / bonding, and how they safeguard their funds. 

I want to learn and get as much experience as I can.

Those deals are rare and starting off with such a good experience is amazing. 

Do you know what you are doing based on actual practical hands on experience?

I'd check local STR FB groups and see if you have a local Real Estate Club.You can offer your services there, maybe for free in exchange for the experience.