Hello! I will try to make the intro brief, but i will follow up if anyone has any questions or clarifications.
Basically: How can I (or shouldn't i?) convince my grandparents-in-law to sell/give their cabin/land to my father-in-law (their son)?
Abbreviated backstory: My grandparents-in-law own 8 acres of land along a lake in northern MN (this is significant/very cool if you aren't from the upper midwest, just FYI). They built a very basic log home on the site in 1985. It was used 6-20x a year from 1985 until around 2005. Since 2005 until now it's decreased steadily to a point where we haven't gone to it in 3 years (my father in law went 1x last summer to cut the grass, that's it) due to it being in disrepair, and there is a mold problem (log cabins require maintenance/upkeep which was neglected here). Grandparents aren't interested in investing any money/improvements into it (no running water or sewer, just got electricity in 2010ish) because "no one uses it" which is an obvious catch-22. Who wants to sleep in a mold-infested cabin and poop in the woods? Why would we use it, unless it gets fixed?
So, my FIL has offered to put in the "labor of love" work needed to get it nice again (drill a well, add septic, mold mitigation, foundation leveling, etc), but he refuses to do all this work if the cabin is still in his parents name, because he has a brother who is, for all intents of this conversation, an aloof 48-year old who still lives at home with said grandparents. My FIL doesn't want to invest a 200k into this cabin only to have it given 50% to his brother who WILL NOT take care of it, or offer to do anything for it. My grandparents refuse to sell it to my FIL because it's "not fair" to his brother. My FIL has offered to buy his brother out, but these conversations end as soon as they start. The brother has some mental handicaps which make this type of conversation challenging for him to have.
My FIL is ready to walk away, and is considering buying his own place somewhere else on a lake, but I know in his heart he wants this place as he has many fond memories, and I do too. It's a ton of acreage on a nice, scenic lake, and the opportunities for this type of property to come available to us on the market and have a chance at buying them are slim to none.
I want to call the grandparents and just have a frank conversation with them, but i don't want to overstep my boundaries or make things worse. The grandparents are high-70s in good health, so we can't just "wait for them to die" (crude, i know, but someone might suggest it). I have a good relationship with both FIL and grandparents, but FIL and grandparents have always struggled to have these types of conversations and have them end well. They are a family that has had YEARS-long bouts of "no communication" due to family drama, which makes me nervous.
What should I do? Maybe the answer is nothing, but man, I really want to see this property used and stay in the family. Any thoughts/questions/concerns/suggestions appreciated! Thank you!