Homeowners are experiencing significant issues with long-term tenants who have occupied their 1935 bungalow since 1939 without a formal agreement, only rent receipts. The tenants are reportedly causing nuisance and exploiting the owners. Legal advice suggests consulting a local lawyer to explore options like filing an eviction petition on grounds of nuisance or issuing a legal notice to vacate, especially if rent hasn't been paid for years or for the owner's personal use.