Just my two cents on the housing as I lived in a county a little further north. Where I was, house prices to buy/rent are higher than normal because of the mica crisis (worth a Google and signing your support if you want a genuine cause to get behind as it's awful). Also, since the end of spring people with spare rooms/empty properties are being offered large sums of money to house Ukrainian refugees. This, and the increase of extortionate airb&bs has made it very difficult to find housing.
If she had the means to buy somewhere that's relatively built up and in a tourist location, it would be costly. But raises the question how - did she use her real name? Or have forged documents? Ireland became quite strict with mortgages following the last recession but loosened a little with Covid but they aren't very receptive to applicants without a steady income or good income projections (I'd bother as a self employed person and had to submit all sorts of "evidence").
If she was leasing, they wouldn't allow airb&b or else turn a blind eye if the rent is being paid.
Social housing is hard to come by. It's based on needs so they wouldn't put a single person in a three bed family home when a family may need it, for example. If she was housed due to illness, they may look to have her in a bungalow (as it's easier to move around in) with a routine nurse/case worker visiting or if her health is declining look to house her in a home or community where she can receive around the clock care. I have friends in social housing and the routine property checks (so she can be allocated funds for new furniture or have maintenance work done) are frequent enough so it could be hard to "hide" the fact it's an airb&b?
Also, if she's in receipt of financial aid, this will be routinely assessed where she has to declare income and her bank accounts are monitored. Personally, I experienced a period of unemployment and received job seekers allowance for a few months while looking for work about 8 years ago. I would have home visits to check I wasn't subletting the empty room in my (privately rented) home. My case worker also had printed documents from my (then public) social media accounts like Instagram and LinkedIn, quizzing me on my activities and if any income was received (like helping out at a friend's birthday party). Im sure if this person was running an Airbnb while claiming income support she would be caught. Cash in hand can be hidden handy enough but PayPal receipts and bank transfers? Not so much!
I just thought the perspective could be helpful but mods please remove if needed.