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  I would definitely follow up on this with your own law suit.  Not only did the rott attack unprovoked, damaged your property, but caused stress and mental anquish.  Isn't there a leash law where you live?  Seems to be laws broken here.  Document everything in writing and pictures.  Stress has a lot to do with ones health, so your health was also put at risk.  I'd sue for everything they are worth!!!  
				__________________Janet
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