Within the next few years, the number of landlords renting out single family homes will be miniscule. And the hatred of that type of landlord will be replaced with a hatred for developers converting and renting out HMOs, thus reducing rental stock for normal family life even further.
So if you think small scale landlords are greedy, watch this space. They have NOTHING on HMO owners.
Example. House on my street. They usually rent here for about £800 pcm. The 6 room HMO being converted now is going to rent out at £400-500 pcm per room.
This is the future.