Writer looking for suggestions for 3-month winter accommodations to work on a book.

http://www.daft.ie/ they have long term rentals

According to advice from others on these forums, don't tell the immigration officer you will be working on a book. Just say you are visiting for vacation. Even though you are not "working" in the sense of going to an office and collecting a paycheck, the fact that you're working at all may raise flags.

I looked up your books. You certainly have a good selection of books on sketching. Will this be more in the series?

Thanks epitd, good advice. And Carol, yes, an illustrated travel journal/memoir.

Why don't you consider a seasonal town, like Dingle, which is a million times less busy in winter than in summer. That way you'll have plenty of accommodation choices and selection.
Theres no way you'd find a short-term place in Dublin for $700 per month.
For example my guest-house is 1005 full from Feb to November but 100% empty from November to January (except for Christmas and New Years eve!). So places like mine or many others in Dingle, or other towns which are similar, like Ennis or Kinsale, might suit you?
le meas/with respect
Stephen McPhilemy
Rick Steves Ireland Tour-Guide
Dingle, Derry and Dublin

Have you ever checked out this group? It's co-op work/living spaces. https://www.wework.com/