Sorry I was not very clear in the concept, I tried to make it clearer below
A subscription-based rental service company, we break your lease contract and you pay us. We find you apartments and rent it for you. You pay us not the landlord.
That is a great question on whether the landlord will agree to sublet, but for me as a service company my argument is I have a customer with a good credit rating who is ready to move in to your apartment. I know many landlords who are desperate to get tenants.
The problem is some tenants are ready to move in, but they already have a long-term contract with another apartment. I am here to break it for you, but you pay me