[...] in the case of valuable properties there should be provision for payment in the form of equity participation in the value of the house. Such a provision would help, for example, pensioners living in a valuable house who have a relatively small cash income. [...]
in a paragraph proposing property tax be more proportional (right now it's not at all)
I mostly like the idea because it's more patalable than my significantly more radical version (basically, throw these people out of their houses) but it's a step in the same direction.