Nothing on the deed about a shared sewer line, I checked it.

Going to meet with another attorney next week for confirmation on this issue before sending a certified letter from said attorney.

His new line will not go through my property at all.

Which is the main concern. You dont know what this neighbor pours down his drain. Caustic chemicals old motor oil shit happens a lot. Your line is the only line that is connected to the sewer district. AS is if the epa found contamination from the sewer and they traced it to your sewer drain line you are responsible because neighbor has no connection. He has a good thing going.

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Which is the main concern. You dont know what this neighbor pours down his drain. Caustic chemicals old motor oil shit happens a lot. Your line is the only line that is connected to the sewer district. AS is if the epa found contamination from the sewer and they traced it to your sewer drain line you are responsible because neighbor has no connection. He has a good thing going.

Another question,

Anyway to show that he was aware of the shared line before your repair 3 years ago?

Also, anyway a professional could examine the lines and state that with his line cutting into yours it put extra unnecessary stress/damage on them from TWO house holds waste that was never meant for just a single line? Could be grounds for Civil action to bring up to your attorney.

I suggest a few items:

1.) Go on a strict Chili cheese dog diet and back that shit up all the way to his kitchen sink.
2.) If forced to converse with him refer to him as "Champ" or "Sport". These are well known de-escalation terms.

Too soon?

Regardless of the legal side of this, it still comes across to me as an epically dickish way of going about it. Adults would find out the details of what's going on and come to an agreement about how to fix it. And no, offering to have him pay you for work done years ago and doesn't actually fix the issue isn't a viable solution.

If you randomly knocked on my door and told me that you're giving me 30 days to rectify a problem that has existed for decades and will cost me five figures to fix, I'm taking that as an outright declaration of war. Anything I can legally do to make your life a living hell, I'm doing. Your dog is on my property? Dead. Your family parks and blocks my driveway? Towed. I'm consulting a lawyer and getting an inspection of every property line. Your fence is 2 inches on my side? Destroyed. Your grandkid loses a ball in my back yard? **** off, it's mine now. You didn't pull permits for work you did? Have fun ripping it out.

Maybe your neighbor isn't as vindictive as me. Just be careful what you wish for. I'd personally make it my personal mission to make you so miserable that you'd feel forced to move. And even then, I would do my best to look like a shitty neighbor to hurt your home value as much as I possibly could.

So good luck.

Me moving to DaFaces neighborhood;
‘Hi neighbor! My wife made you cookies. Hope we can be friends.”

Its all easy peasy when it doesn't effect's you or his land. As the land owner it can drive you crazy. it has been 3 years since both parties became aware of the situation as I understand it. That been enough time that a responsible neighbor should of worked a plan out to remove the line that encroaches onto Roys land and make a legal connection to city services.

I fully believe this should have been required long ago when the original owner sold off both lots to different parties. He had an obligation to declare this problem and fix it or have an sewer easement written over the lands in question to cover a mutual shared service lateral.

Regardless of legality the dude already lost a pet. I wouldn't be surprised if he was already in war mode.

Its one thing to have a sewer drain line get roots in it and back up raw sewage (your shit) back up through a floor drain in your basement. Worse if you have no basement and in to your kitchen sink and floor. Its even worse when it your shit along with your neighbors!

The neighbor has a history of making threats to the OPs grandkids and their friends. Serious dickish behavior on the neighbor's part is already afoot.

It can get far worse.

Based on what you have said in this thread, if your neighbor threatened your grand kids and their friends I don't think you'd be inclined to be a nice guy when it came to handling this situation about the sewer line.

If you are the OP, How do you approach this guy and present the problem you want solved?