Most residency advice is written to sell a programme. This is written to help you refuse most of them, which is the more common correct answer.
Begin with the obligation you already carry, not the passport you would like. Tax residency, reporting, and exit charges are determined by where you actually are and what you actually hold, and no second document erases a first set of duties. A great deal of expensive disappointment starts with getting that order backwards.
Then ask what the document is for. Mobility, succession, optionality in a bad decade, a school, a currency — these produce different answers, and a programme that is excellent for one is often poor for the others. Write the purpose down in one sentence before anyone shows you a brochure.
Physical presence requirements are the clause that quietly decides everything. A five-year path that requires nine months a year in country is not a second residency; it is a relocation. Read the renewal conditions, not the acquisition conditions.
Finally, consider the durability of the programme itself. Several well-marketed schemes have closed or been materially narrowed with under twelve months' notice. Prefer paths that rest on ordinary immigration statute rather than on an investment window that a change of government can shut.
Our counsel on this is arranged through Niiji Global, whose mobility practice sits alongside their conservation and cultural work. Horizon Fellows receive a full file review; Apex Guild members receive a family mandate.