[Balanor]

I would not consider that illegal - especially if the PC is dead/deleted. Assuming your old PC's building was not lost to late taxes prior to June 21, 2012 (the version 5.0 update of the module) the furniture will still be there unless someone else stole/took all the furniture from it before then - which was also a problem up until the last server update.

So reclaiming it and the furniture inside should not cause any problems for your new PC.