The person who deals with the estate is called the deceased person's 'executor'. [1]

[Executors] must: [1]

• Gather together and protect all the deceased's assets such as money, shares and property and find out their combined value
• Call in any outstanding funds due (money owing to the deceased)
• Pay any debts or taxes owed
• Pay the funeral expenses
• Make sure that the spouse (or civil partner) and children know about their legal right share
• Make sure the entitled beneficiaries or next of kin get what they are entitled to, and that ownership of property is passed on correctly.

How many Executors should I appoint?

• You must appoint at least 1 executor.
• Appointing additional executors allows the executors to share duties and responsibilities.
• Having additional executors also safeguards against one or more executors being unable to fulfill their duties (e.g. due to injury/death).
• Practically speaking it is recommended you limit your appointments to 4 maximum. This is because the executors must act jointly (e.g. some forms must be signed by all executors, etc.) which can slow down the administration of the estate.

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[1] Dealing with a deceased person’s money and property - citizensinformation.ie