What I meant is that a Dubai visa is not necessary to execute this scheme. In general, if you spend less than 180 days in a country, you are not taxed in that country (irregardless of whether you have a Dubai visa or not). Country of citizenship is mostly irrelevant for tax purposes, unless you are American. There's not usually a law that requires citizens to be paying taxes somewhere (else, I could see how the Dubai Golden visa could help).
I think you'd need at least one country to give you a taxation statement for a given year or you risk your home country will extract those taxes from you later. I can ask my tax person about it.
I get you don't really understand well how these things work. I suggest you don't give advice in this area. Some people will find themselves in trouble because of it.
