"Access housing that is within their budget."
It's by far the biggest issue to address. And also the most difficult one.
So easy to say. So hard to implement. Especially if the goal is that the access does not go away as income goes up.
Most solutions out there involve shoveling money at the problem. But in practice, this will just make housing prices go up. The poor will still be left out in the cold.
The only solution which might work is building more units that would appeal to people with low income in desirable locations. This is still almost impossible due to zoning restrictions, but it's the only way out.