1) it is costing you money to hold on to the house. At the most basic, you get rent of €14000 pa, you pay 45% tax on this, while leaves you with €7700 but your mortgage payments are €13576.20 per annum, costing you a minimum of €490 per month. But with LPT, insurance, maintenance it is costing you more.
Rental property: €400,000 just a guesstimate on equivalent properties recently sold in the area
Rental property Mortgage: €220,000
Rental income of €14,400 per annum
Your loan appears to be with Bank of Ireland. What interest rate are you paying? You could fix at about 3.5% so make sure you are paying the lowest available interest rate and that you have not defaulted to a high variable rate.
€220k @3.5% = c €8,000 per annum in interest or €700 a month.
Add other costs to bring it up to €10,000
That means that you are making a taxable profit of about €4,000 a year or around €2,000 after tax.
Your repayments are presumably higher than €700 per month. Any excess is a repayment of capital. So if you are paying €1,200, it means that you are reducing the mortgage balance by €500 a month or €6,000 a year.
If you lived in your own home which you owned outright or with a mortgage, the correct financial decision would be to sell your investment property as it would allow you to clear your other loans and contribute to a pension.
However, that is not the situation here.
Your father does not want you to sell your investment, and if you do sell it, there is a chance that you would be disinherited. So there really is no debate on it, you need to hold onto your investment. And as it happens, it's not a very bad investment.
Furthermore, you prefer your investment property as a home to live in and will move back when your father dies. So I don't really know why we are even discussing the potential sale. It's just not on the table for discussion.
Forget about pension contributions for the moment. Forget about your children's education for the moment. Focus on paying down your expensive debt if you can. When your father dies, sell his home, clear your debts and mortgage and you will be in a solid financial position.