Potty Training Spray for Dogs - Dog Pee Spray with Marking Scent - Go Here Puppy Pee Prevention Spray - Formulated for Indoor & Outdoor Use - Made in USA, 32 Oz Spray Bottle

Buy some dog repellent and spread it along your shared property line. See if you can get the dogs to do their business further from your house. https://sonic-barrier.us/blogs/dogs/how-to-repel-dogs-from-your-yard?srsltid=AfmBOopM7VazCNpHeYAotfwz8ush1HnpuOYHRxbtFKbY56kTbUVcwuhR You can also try getting some of this and spray it in your neighbors yard when he's not home. https://www.amazon.com/Potty-Training-Spray-Dogs-Prevention/dp/B09BK9FWNJ Get some 'doggie doo dissolver' and spray it over any messes that they make. And finally get an ultrasonic device to repel dogs.