3 ms·

If this happened in the US, it's likely that the island would be /his/ property under adverse possession law: https://www.nolo.com/legal-encyclopedia/adverse-po

• wahern 8y ago
  Adverse possession must be adverse to the original owner's title. If the owners knew he lived there and tolerated him and otherwise made use of the land, then his presence wasn't adverse. See, e.g., https://en.wikipedia.org/wiki/Adverse_possession#Hostile_possession https://en.wikipedia.org/wiki/Adverse_possession#Hostile_pos... and https://en.wikipedia.org/wiki/Adverse_possession#Exclusive_use https://en.wikipedia.org/wiki/Adverse_possession#Exclusive_u...