Enforcing restrictions a decade after HOA dissolved

[Alyssa K.]

I have a SFH out of city limits on 1/2 acre that is my current live in flip. When the neighborhood was established in 2001, there was an HOA and restrictions that it enforced. At some point long before I came along the HOA was dissolved. I'm getting ready this property on the market to move into my next live in flip, and the neighbor across the street just dropped a single wide trailer in his front/side yard, didn't even attempt to buy a "cute" one, it straight up looks like an office trailer. I have an email out to my lawyer, but was curious if any of you have had luck enforcing restrictions sans an HOA. The main issue I see in enforcing is that because the HOA has been nonexistent for so long, the majority of the houses have a violation in one way or another. Suffice it to say the entire street is pretty peeved, and are looking to me to see if there is anything we can collectively do to encourage this guy to at the very least move it into his backyard off the street.