Landlord and Tenant Law Amendment (Ireland) Act 1860
Section 4 remains the most important part of Deasy's act still in force. It provides that all leases of over twelve months must be evidenced in writing in order to be enforced.
The Law Reform Commission in 2003 stated the act "continues as the foundation of the law of landlord and tenant in Ireland". Michael Cunningham is critical of the courts' unwillingness to find the act unconstitutional. The government elected in 2011 has published the scheme of a bill to modernise the law, which has yet to be introduced to the Oireachtas.
- Cunningham, Michael (1998). "A critical evaluation of the statutory protection given to residential tenants in the private rented sector.". NUI Galway. Archived from the original on 25 August 2003.
- "Draft General Scheme of Landlord and Tenant Law Reform Bill 2011". Department of Justice and Equalit. Retrieved 3 March 2014.
- "Written Answers, No.199: Proposed Legislation". Dáil Éireann debates. 27 February 2014. Retrieved 3 March 2014.
- Landlord and Tenant Law Amendment Act, Ireland 1860 Irish Statute Book; text of Act as in force c.1910