A solution to hedge funds being arsehole corner-cutting slumlords for tenants of single-family homes they picked up on the cheap after 2007? Not really, because “hedge funds”. They’re greedpigs and being landlords is not their core business. I’d like to see any landlord who advises his tenants to monkey around with the wiring or pipes have the property’s insurance revoked but that’s the best we can hope for in our “the market solves everything” country.
The larger question of solutions for high-demand cities dealing with skyrocketing housing prices due to low stock is mostly a separate one, worthy of its own discussion topic.