I agree with the post above on Forestry. I think any land that is planted may then be under Forestry Law / Regulations ?? so stays in trees in future. Planting a steep or low lying part of the land away from the house may suit and you could investigate this asap as grants are available for planting and maintenance but this may change. If you decide to keep livestock on the farm and it has not been grazed in recent years, then the farm will probably need a lot of fencing and cleaning up to get it back in shape and animals will also have to be checked daily. Probably best to rent some or all of it out to a local farmer. Get an auctioneer to set the price ( not familiar with Donegal but think rental prices are fairly high ) and agree who is responsible for the fencing, water supply and clean up. Also agree how many months the land will be grazed to prevent the land being damaged during the wet winter months. If you're going to use the house as a holiday home / weekend retreat , then maybe the local farmer will keep an eye on it for you in your absence. As regards machinery etc get a local contractor to do any necessary work. If you decide to take the plunge fulltime , twenty acres sounds an ideal size to keep horses on . Don't know if you've any experience with horses, but have heard of a few farmers converting sheds into stables and taking hunters in for a weekly rate. Hope this helped and good luck