I'd like to counter act on the above negative review which I don't think is very fair...
as with a lot of people who use Trip Advisor, there's always one who had a bad experience with accommodation and then builds a proverbial snowball up to be a stinking avalanche.
I stayed with my wife there last Friday...
Again we were at a wedding in the Nuremore and avoiding the extortionate bedroom prices they were offering (€185 per double room)
Lisanisk was standard enough as B&B's go, but it was/is the cheapest B&Bs in the area.
Rooms were clean, food was fine and the host Rosaleen was very helpful and friendly, oh and the area dn house itself is really scenic.
It's a family run business and people are doing their level best in these tough times to make a crust as best they can.
If you do find yourself staying in Carrickmacross/Nuremore and are looking for some pocket saving yet decent genuine accomodation, I would no problem in recommending this B&B.