As far as condos, the HOA fees and rules are what make those either very attractive or not so attractive depending on the person.

According to the 'Global Luxury Landscape of 2021' report, the Baixa do Porto and Cedofeita areas have attracted foreign investment, specifically United States and Israel.

My business partner and I are just getting into real estate investing and have some attractive target properties we are looking at.  

Cozy.co looks to be quite attractive and I've gone through their initial account setup, linked my bank account and all seems smooth so far - but I'm curious as to how the service functions in practice and if there are any "hidden" fees that the tenant or the landlord would potentially run into and be cause of shock/disappointment. 

If a pickpocket steals your wallet, people will wonder why you would carry your wallet in your pocket.

An above ground tank around here ,all you do is cut some large holes in it and take it to the scrap yard .An in ground tank , break out the wallet 

I would suggest you start with vacant land as the prices for occupied are going way too high to make them attractive for a flip and your redemption period is shorter on vacant land than occupied may be if it is a homestead.  

The high end nature of the St Louis market properties attracts higher quality tenants and provides a better exit strategy environment than most other markets' properties."

Only to attract more buyers.. is the house substantially in a bad shape?

The first order of business is attracting good tenants to begin with.