Hi, I'm one of the co-founders of Landed. Some great answers below. Some additions:
1. The only thing I'll add is that schools that have implemented similar programs have largely done so out of necessity/desperation. Given the choice, they'd much prefer to not have dedicated internal resources managing housing financing for their staff.
2. Companies can also provide benefits of scale that could make all of these programs better off. The biggest weakness of a shared-equity investment product is a lack of liquidity (no market for resale). Each school having its own program with different rules and investment structure provides no opportunity for a standard institutional product. A standard institutional product would bring more competitive pricing because investors wouldn't have to be worried about holding positions for indeterminate periods of time.
3. The idea is that this is not subsidized housing. The idea is that there might be an opportunity to take existing real estate private equity capital flows and direct them to cooperate with buyers instead of compete with them.