I talked to my mom just now, she said she called the county yesterday but they said they wouldn’t mediate and that we should hire a surveyor, she’s calling them back today, surveyors are booked up for the next few months “the ones she’s called so far,” so this may take awhile.
A friend offered to contact a surveyor he knows, hopefully that works out.
I think part of the issue is this map, I found this yesterday. I think this is the reason that the new neighbors don’t want to look at the parcel maps or the county survey map, they’d like to go with this one because it shows them having more land than they do on multiple boundaries, us and with other neighbors.
This map is user submitted, I’d like to know who the user was because the roads are all in different places than they are, and there’s an entire road that doesn’t even exist “Wheeler lane.”
For reference our property is directly to the left of the property marked “alks billiards” is our neighbor (M) the property line that’s contested is the one between our property and the one below us “it’s higher up the hill, but sitting southerly, it shows the property line running down our driveway, that isn’t accurate. The switchback up two the neighbor’s property to the south of alks billiards is actually on alks billiards property “easement” it isn’t on the property it shows, so (M) is now missing land to the new neighbors according to this also.
Sharon valley trail is in a completely different spot as it is also. There’s an entire road that doesn’t even exist to start with
So if the new neighbors are claiming this as their plot map, that would be laughable, and they’re opening themselves up to disputed property lines with multiple neighbors.
This map is far from legal. It's only Google's version of what might be property lines. For a real true map, one that can be used, you must go to your town. On a lot of towns' websites, you can find your map that you can print. At your town office, they should have a large copy (that stays there, but you can take a picture of it) of your map. That is the tax map you are looking for. This map should tell you measurements of each line of your property (including road frontage) and directons according to North, South, etc. (A surveyor would be using those directions.) If you know where your pins are, you can do your own measuring, though it doesn't stand up anywhere, including with your neighbors. Only a surveyor's word and measurements will get you somewhere.
I've been having a similar property dispute. I just moved next door to my Mom into my first home. Things went well until my next door neighbor on the other side of me claimed my brother was on his land, when my brother wasn't even close. He started claiming his property pin was the water pin up by my house- that was at least 100 ft of my road frontage that he was claiming! We went to the landlord (I'm renting to own) and my landlord hired a surveyor to come, which was to be in a few weeks.
The surveyor finally came, and my Mom warned the surveyor about the neighbor. So the surveyor heavily marked my line on that side, and hammered the 4ft corner pin down so it wasn't easily seen. Sometime in the same day after the surveyor left, my next door neighbor tore down all the markers up to where he was claiming, but thankfully he didn't see that corner pin. My Mom called the police and the landlord. The police came, but my neighbor eluded him.
The landlord was able to get the surveyor to come back the next day, and the landlord met with the surveyor. This time, the surveyor blazed the line. Sometime later in the same day, behold, my neighbor stuck again! Only this time, he stole the corner stake that was by the corner pin, and left the markers. He left a note for us (where the stake had been) that my landlord had sent him several weeks ago. My neighbor used permeant marker to make it look like he had just got it (crossed out the date) and tried making it look like the surveyor hadn't come yet. Again my Mom called the police and the landlord.
The police was able to meet up with him this time and handed him a trespassing notice. The neighbor told the police officer to get off of his property and the police officer reminded him that it's the landlord's property (my neighbor is just renting). My landlord has asked the police to investigate my neighbor and has threatened the evict him if he continues giving trouble. The landlord has also told us to call the police on anything further. Thankfully I've had no further major troubles, and he's even put his No Trespassing signs on his property, not mine. (You have the right to put No Trespassing signs on your property line, and I suggest you do! It could help in the long run, and get evidence that those are there just in case your neighbors take them down. I've seen some people put them high out of reach.)
Basically, you want a paper trail. On anything (them going after your property lines, threatening you while you're on your property, etc.) you want to be calling the police. You want a paper trail (police records and other official documents) showing what's going on, especially if you ever have to go to court against them. As my landlord's grandson (who's taking over for my current landlord) told me and my Mom, it's better to not deal with them personally. No talking anything further, or arguing. It'll get you nowhere. Go straight to the police, and let them deal with them. If it's any help, take pictures of your lines, and what's supposed to be on your lines. (Trees for example, you had mentioned them going after yours. If the trees are on the line, they're allowed to cut them, but they are to split the trees' profit with you. Take notable record of those trees though.)
You want to get a surveyor in as soon as possible. If they're all saying months, go with the soonest and schedule. On all of them, ask to be put on a cancellation list. WARNING: Some surveyors won't come if they know that your neighbor is trouble and/or dangerous. Once the surveyor comes, it'll be documented, and you might want to have some type of documentation from the surveyor should you need to call the police. Again, if your neighbor should give further trouble, don't deal with them personally! Go straight to the police!
I hope this has been helpful. Best of luck!