It has nothing to do with business and not something that tenants would recognise or appreciate.

That is the primary purpose of having community rules recognised in your state landlord tenant regulations.

Parris Baxter - welcome to BP and well done indeed for recognising the opportunities in Real Estate so early!

Are there any recognised organisations that arrange these?

And the reason why is simple:"Where imposture, ignorance, and brutal cupidity, are the stock in trade of a small body of men, and one is described by these characteristics, all his fellows will recognise something belonging to themselves, and each will have a misgiving that the portrait is his own."

Do banks recognise income in another EU country, or I have to live in the state?

Even if the company is highly vetted and recognised isn’t it risky for them to collect all your money then trusting them to only take their cut and give you yours. 

Here is a super cool answer I got back via IG - rentalstowealth you might recognise the name from the most recent new podcast on Bigger Pockets!

There will always be good deals - the skill is in not only having the confidence to know and to trust that, but also to recognise the deal that is good for you and then to be able to go after it not have someone else's great deal go after you.I hope that helps, sorry to quote Epictetus at you I got a bit carried away but those Greeks knew a thing or two :)

This will give you a feel for market price and then you will recognise a deal much more quickly.