[exabrial]

Just a nitpick: If you're on private property it's not brandishing. The other person would be trespass in fact provided it was posted or you told them to leave as an agent of the property. If you are threatening people off your property from your property that's a whole different ball of wax and in any scenario there are a ton of if/buts.

Brandishing laws come into affect on public areas and are subject to a lot of ifs/buts.

[nullc]

Indeed. Brandishing also generally requires using it to threaten, not merely have it in your obvious possession with the implication that you could use it to defend yourself if the threat escalated.