Albezia and Other Weed Trees - Dealing with them?

[1voyager1]

I'm thinking of getting a hold of the neighbors to speak with them about it, then try getting a written OK to enter the property to do it myself.
I expect it to be an easy simple fix with no problems for them to deal with.
If for some odd reason  they refuse, then I'll look into potentially making repercussions for them to deal with.
I have given thought to just sliding on and doing it.
That would work on the vacant lot.
But, that does leave the potential for liability for any damage the poisoned trees may do.
I have poisoned a few trees in locations with no danger of their doing any damage.

Using a small hatchet, cut through the bark and sapwood in several places around low on the tree.
Then spray the cuts with an herbicide.
Works very good and easy.