Vampires

As always, it depends on the writer/DM

Assuming standard vampire mythology though, a warrant isn't an invitation to enter, it's permission for someone to enter against your will, with the backing of the government.

So, on a "magical" level, it wouldn't meet the criteria because the origin of that limitation isn't about a legal standing. It's about the space being lived in, and the construction of the space giving boundaries that can be/are present in a non physical way.

Foundations, doorways, windows, they all have a degree of "mystical" presence beyond their physical purpose, within this context but also in general. There's some beliefs out there about how a foundation has to be laid to make a space a proper limitation. It's akin to sanctified ground in a way.

And, depending on what stuff you dig into reading about this stuff, once that boundary is in place, the actual building/home could be destroyed, and the boundary can remain, a kind of ghost wall that can't be seen, but still has presence on a spiritual level.

With all of that in mind, the vampire would be unable to cross the threshold no matter what government agent said they could, unless that government could be said to be the owner. However, most of the mythology on this kind of stuff, ownership is irrelevant. What matters is who lives there, so even that might not work.