Thanks to everyone for your great advice.
I just talked with my Mom and think I'll leave well enough alone. She'll soon be 94 and lived there 80 years so far.
I'll talk to the business owner explaining for now she wants things as is. If her drive needs snow plowing or fields bush hogged we expect to pay. What's bad is their lot creates problems with heavy rain, driveway washout.
The lake mentioned by oosik we went through that when grandfather had his lake put in in 1954. Give people an inch, they take a mile. The last straw was me walking out the lake beside dock and had a terrific pain in my foot, then seeing the bottom of a drink bottle on bottom of my foot.
Sometimes at the picnic area a whole family would be using it we didn't even know!
Always good topics that provide food for thought... especially when elders get up in age...
The backyard of both mom's home and my home is a lot mom and dad bought 50 years ago so as to not loose the existing but not then owned area and more important to preserve a phenomenal view.
Been trying to buy it for years and always told it's mine but reality is it will be part of the estate...
Should have made the deal 25 years ago when the folks suggested it...
Strong believer in proper documentation can avoid many later problems.
I have seen several life estate transactions that also saved some in taxes...
Land deals especially those with family tend to get complicated.
The new owner wants use of Mom's property, maybe 1/2 acre road front section. He would cut trees, grind stumps, and stone it, using it for more equipment display.
I'm not in favor of it. If I say no I doubt there would be any more road grading or snow removal. I'm 20m away and no trailer.
Guy said he would even have his lawyer or pay my lawyer to draw up a contract.