You've have undoubtedly earned the right to display it with pride.

Must it directly border the "city limit"? 

Illinois will get a lot of the benefits, with it being placed so close to the border, but Illinois didn't have to shell out the billions in tax breaks and subsidies that Wisconsin did.  

Funny how finnacial "wizards" always try to quicly distract BP investors away from thier comments with subsequent posts when they poke thier nose in a discussion topic in which they display complete finnacial ignorance to all.That's okay,  they need to learn too.

Some friends of mine who rent to members of the military enjoy the fact that they basically are guaranteed the rent for the terms of the lease (generally two years). 22307, 22308, and the 22309 zips are at or border Ft.

In your particular case, it will boil down to a few things: who you invest with in the US (most important), solid cross-border CPA and investment strategy. 

Perhaps I should focus my efforts south of the border. 

@Casey McCoy there are options but you will have to do some digging. most places ( big box stores) do not stock these items and do not have them on display.

George Dube and Peter Cuttini both CPA that work together across both borders.

This included removing all weed / growth, installing a brick border, laying out landscaping cloth and stone.