Brother inherited farm and does nothing

I have Something that has been bothered me for a long long time and I need advice.

Basically my parents transferred the family farm which consists of 2 farms to my brother when he was in his early 20s and the only thing that is not transfer to him but is being left to him is the actual house in which my mother turning 80 Lives in. House is in the middle of the family home farmyard and then there's the out-farm which is the bigger of the two farms which my father inherited and consisted of centuries old farm buildings and he knocked down and built a modern dairy farm and took it a huge loan and him and mam worked their asses off to pay back.

I was delighted that my brother got the farm as did my father and his father before him. That's not the issue. The issue is that he never wanted the farm and felt as the only son he had to just go along with it which is not great when he was a A class honours student and could have been anything. Unfortunately he also suffered abuse as a child which has never ever been talked about and had never been confirmed officially but myself and my sister know and its had had longterm mental illness effect on him.

When my dad died some years back he tried to sell up the out-farm and all land just leaving only the family home farm and a few acres around it and he was badly messed around by the purchaser and he withdrew and has rented it out since. The farmer is unreal and keeps the whole place perfectly. But the problem is that the family home farm and surroundings area is just let go. My father would turn in his grave after all the years of work he and mam put into building the family home farm up to a first class . All the machinery, the out houses all over grown, part roofs blow off, I could go on and on and my poor mother wouldn't say a thing. He keeps a few cattle at the family home farm but my mother actually looks after them, and he had to test them 2 months ago and he used the old tractor and gates to make an enclosed area in from of her house and had just left them there in her lovely yard that was picturesque little years and his back had a pulled muscle so he went move them. 2 bloody moths and my husband offered to take them all down and move tractor and he said no. She's like a young one thank god and is very active. But she just turns a blind eye to it all. But what is really annoying me is that because I live beside her (my brother and sister live 2 miles away) it's just automatically expected that we paint her walls, cut the ditches on the lane, spray the lane for weeds, look after the entrance dien at the road, and any other bits to be done and I'm getting sick of it as it's not mine. My husband is working long hours and is looking after his own mothers place as well as our own house and mam just keeps saying...I must ask him about this and about that... but she's loaded and I'm so tempted to say to her mam, can you pay someone to come do these jobs, she has a mam come cut her grass, it's a free service, but she don't want to ask him to do anything either even though he's allocated to her for an hour, she only get him to cut the grass. She wants her two story house gable wall painted, she wants the facia cleaned but won't ask him to get up on a ladder but she'll ask my husband and its pissing him off too as it must be lovely for my brother to Swan in and out and do nothing. May I add to the picture that neither my brother or sister or their spouses work as they were all left inheritance and are living very very comfortably and I'm delighted for them. My brother passed me painting the walls at the end of the farm lane once and while yes I do use that entrance i have a right of way but I have my own entrance off the lane, but my sister uses it every day to call to see my mother, my brother uses it, everyone uses the entrance to go over to mam's and HIS FARMYARD that he owns but does nothing with but he stopped and just said, that's a great job your doing, and headed off to town for his lunch and I thought am I a gom or what.

Anyway, what should I do. Should I call a meeting between siblings and just say like do they realise that everything is looking great over the years because we've done it but I think it's time my brother took responsibility for his property. Like last year mam mentioned to him that the houses in the yard needed painting and he even had the cheek to contact me, I work 5 days a week, and said would you all come togther and paint the farm yard buildings, I said I'd ask my son to do it when he was off for summer from college, even though he was going to be working for the summer and he said OK and my mother paid him a few pounds. Like I say he suffers with mental health and what happened him as a young lad is so sad, I don't deny that, but he is able to Swan around with his dog all day, he's off to dublin etc he's not sick at home or anything, he's so self absorbed that you wouldnt believe it and my poor mother is afraid to open her mouth to him. And when I say he's anal about everything I actually wonder some times is he on the spectrum.

Help, what should I do, keep my mouth shut or try have a peaceful talk to them. Its driving me wrong.

Ps. This rant had been therapeutic for me so thanks for reading