Buying Dublin corporation house for parent- can this be done ?

Hi - I am curious to find out info on the following . My mother has lived in dublin corporation housing for years and I understand that there are ways to purchase the property. As she's in her early 70s and not working (and is a widow) she is obviously not in a great situation to be able to make use of this. Is there any way that myself and other family members can assist with this ? Would she even be considered ? I had emailed corporation but never heard back so just wanted some general info at this point. My understanding is that she would get 30% discount off of the market value and that there are restrictions regarding selling. The house itself would be in a highly rentable area only a mile from the city centre. Any info would be appreciated : )