How about setting up a home loan system like rent to own. People collect money, give it to a person who is living on rent and needs to buy a house. The money can be given to him on installments. The organization can even earn from it. For example, let's suppose a person wants to buy a house in Madinah. The house costs around 200,000 Riyals. 10 people form a consortium. Each one gives around 20,000 (which is not alot). Then they buy a house and sell it to the person who needs it on installments for around 250,000. The benefit is very clear. If people are interested in forming this, I offer them to make me their first client