Don't agree with this approach
As a landlord of 1 property I keep my place very tidy, well insulated heat pumps and fix any issues immediately. There is always talk about the poor tenants but never any talk of making tenants truly accountable for property damage. Smoke Pmin my house, zero consequence. Your party will not get many votes until it addresses both sides fairly and equitably. As for your policy of following the German model, why not simply make all tenancy fixed term lease so that both the tenant and landlord know what they can expect up front? You see, the issue goes both ways, I have had tenants that told me they were going to be long term and 4 months later they are gone.
Do you like this suggestion?