Everything else requires trade-offs. - If you allow educator salaries to track property values instead of CPI, you create massive inequities between school districts. Maybe a regional inflation index that includes housing costs? - If you raise salaries, you have to raise taxes. - If you build teacher-specific housing, you're just passing the buck to the next profession.
Regardless of all the above, I think you'll need mechanisms for people to share the investment risks of expensive land ownership. I'm not sure mortgage insurance is the best mechanism -- hence Landed.