It can be done.
I did it back in 1980
I now own >1 property
BUT.
You need to go in eyes wide open.
You need guarantors (Bank of Mum & Dad) for all costs and expenses
Buyers need to budget for replacement of fixtures and fittings (say £2k PA), so the monthly payment must be higher than the mortgage.
Buyers need to realise that if they leave, then the house boss will find the new replacement (afterall they have to live with them) but the owners remain ultimatly responsible for the payments.
There needs to be an agreed exit strategy from the outset. Such as an agreed option to sell on given dates (say every 3-5 years)
If after say 5 years only one person wants to sell then they MUST have the option. The others can buy their option, or everyone sells.
The only way this will work is Socalist Benign Dictatorship.
One resident has to be the boss and sort out the money, the rota's, and makes the decision on the coulor (and cost) of the living room carpet etc.
All must be agreed, on paper, before you kick off.
In my case it was a 25% split.
One person never moved in, so in effect became a silent partner and was happy with that (as house prices were shooting up)
One person moved in a year late.
One person moved out after 3 years.
This meant that we always had owner and non-owner occupants, we charged everyone the same, and everyone had a hand in the same decisions
I sorted out all the money.
Even after I moved out (and left 1 owner and 3 tennants behind) I was still the one to make all the decisions and sorted the money and in effect became an Absentee Landlord, which was a situation that suited everyone.
We then rented the house out for a number of years after which I then bought out each of the partners, (which then started me on the path of buying other properties, but that is a different story .......)