[kjsthree]

It's certainly possible but, as you say, you'd need tie/attach the laser to whatever of your neighbor's property that you want to effect. You can't do this from afar because the lightning strike is coming toward the laser emitter.

Expect your door to get knocked in soon thereafter.

[tintor]

Unless if you use two connected lasers. One pointing to the cloud and another to the target.

[xwdv]

Could the laser be split to strike multiple targets simultaneously? Put a tower like this outside an outpost, when hostiles are spotted create a laser beam to each one then unleash a lightning strike somehow killing them all damn near instantly or at least incapacitating them.

[kjsthree]

Yeah, you might have something there.