Asking a multi millionaire to buy me a house :)

So much risk for the person giving you the loan for very little reward. A millionaire has a much easier and less stressful way of making more money with money than giving you a loan

The return any investor would need on this to make it worth it would render your mortgage unaffordable beyond belief. Say if he wants a modest return of 6% which could reasonably be expected if he bought into any sort of diversified fund, you would have to pay him 30,000 euro a year even before any capital repayments are made. He may deem this too high risk for 6% and I'd agree with him, so he may want 10%. Now you are looking at 50k before capital repayments.

This is such a non starter I'd suggest never mentioning it to him and keep your friendship.

There are strict rules on lending in place which are dictated by the Central Bank. The rules are designed to stop people from getting into unmanageable debt. If you can’t meet the criteria for a mortgage, then there is unlikely to be a workaround. So you will have to do what everyone else does, save, buy in a cheaper area or get a joint mortgage with a partner.

No matter how good friends you are, no one is going to buy a house for you.

They could also tax landlords at 90% basically rendering domestic ownership as pointless other than as an inflation hedge or remove interest deductability. They have chosen not to. Young people need to choose to leave and NEVER come back.

The government. The government is insuring the whole thing anyway. If you lose your job and can’t pay mortgage, government has to house you. The mortgage is still going to be cheaper than anything you will rent

if the housing crisis isn’t solved there will be economic decline and the economy won’t be resilient to shocks. It’s the government’s job to avoid economic decline and make it resilient. To do that steps have to be taken to increase building supply. If that requires advancing some credit insurance to builders or homeowners, that’s what has to be done.

I was really only positing a what-if, more than a serious proposal. If it was this easy, all investors would choose this route. As @Pawwed Rig says, they would get a better return by buying apartments and handing it over to a lettings agency to manage.

Any kind of agreement I laid out would nearly need to be a favour between friends and not a serious investment proposal, unless you personally planned on throwing €100k of your cash into renovating his property.

Lifetime leases do exist, there's a specific name for them. But they're usually done where you have an elderly tenant that the landlord wants to protect if/when the property is sold, or where a property owner has died and they want to give another person the right to stay in the house (say a child or sibling).

Jeanne Calment (oldest person ever known to have lived) famously had one of these with her solicitor. At 90 years old, her solicitor agreed to buy her apartment. The arrangement was that she could live in it for the rest of her life, and he would pay her a monthly fee. Once she died then the apartment became his. He obviously thought he was quids-in, this old bird has at most five years left, cheap apartment for him.

She lived for another 32 years. He did not. And he ended up paying her twice the value of the apartment before he died.

First of all how do you know they are a multi millionaire - I am an accountant and often find that the ones with the large houses, designer clothes and expensive cars haven't a pot to piss in. Its all done on debt and all for show. Ive seen people offer to invest in a friends new idea and then want me to come up with reasons why the friends idea is unworkable - reality is though they dont have the funds to invest and just want to be the 'big fella' by making the offer.

If this person is as wealthy as you say and they do proceed with this you are leaving yourself very vulnerable. What if their situation changes and they have to sell assets - your house would probably be first on the list to go and you would be left high and dry.

You're talking about philanthropy, the OP specifically said his friend was open to making an investment.

2008 called. It wanted its bubble and crash back.