You need a valuer. You may have to pay stamp duty. The deed will have to be adjudicated in the stamps office. You will need a PPS number from the Dept of Social Welfare. You will need somebody to file your gift tax return under the new system. You will need a proper deed of transfer drafted by your solicitor. You will need to register the deal with the property registration authority. You will need a declaration of solvency by your mother. You will need a family home declaration. Your solicitor my deem it prudent to get other info from your mother to deal with queries on title by any future purchaser.
Bottom line, you need a solicitor. Somebody who lives near your mother may be best so it is easy for your mother to visit them to sign documents.