avbug - was that area 5 miles ENE of OKM?
No.
Virtaully every airport I've ever been to has had the same problems...people encroaching, wanting the airport gone. Private or not. Eventually people in out...it's only a matter of time.
I recall one little airport, fairly rural area. Every time we had a noisier airplane, like a Cessna 185 or a 206 land, the daughter of an old man who lived a half mile out on the extended centerline, would call to complain.
I was accused of being out to cause her father to have another stroke, trying to kill him harassing them. I had the police called and came to visit me...and I had nothing to do with her problems, the airplanes landing, her decision to live there (long after the airport was built), etc. At length, I invited her, and her father, to come to the airport. I offered them a scenic tour of the area which would culminate in several landings to show them why aircraft flew the traffic pattern how high they were, and why they couldn't go elsewhere. I offered to take pictures of their house or other things that might be of interest, all at no cost to them. Just to placate them and help them understand what was going on.
They adamantly refused. They wanted the airport gone. Not rides. Not pictures. Not free flying. I didn't need to show them anything, they already knew what they wanted to know, and wouldn't hear of anything else.
Sometimes you can throw a drowning man a glass of water, but you can't make him drink.
...however much you'd like to cram it down his throat and help him.
Some people won't ever go away no matter how much you fight them in court.
The only thing you can do after hiring that attorney and following his counsel to a T, is ensuring that your flying is as noise abatemenent friendly as possible, modifying your takeoff and landing paths to eliminate as much conflict as possible, and making as few waves as possible. Be a good neighbor, to the point of excess, so long as you can be safe. Anything else will only excite, inflame, and upset. You don't want that.
Attorney. Good neighbor. Quiet.
You might try inviting them for a flight, or offering to take pictures of their homes...or having some sort of public dinner or friendly get together that shows the fun family side of flying. If you're already involved in litigation, you're probably too late to make nice but do what you can. Most of the time, you're facing an uphill, losing battle. Sometimes the best way to wage war is to avoid the enemy completely.