You may want to investigate a management support system, such as the service provided by Local Community Services Association (LCSA).
The Australian Charities and Not-for-profit Commission (ACNC) has published a report, Not-for-profit Reform and the Australian Government, that provides an overview of the reform agenda and the regulatory environment in which charities operate since the establishment of the ACNC. It builds on the 2012 Australian Government report, Strength, Innovation and Growth: The Future of Australia’s Not-for-Profit Sector.
The United States Interagency Council on Homelessness has provided a Solutions Database, which contains short profiles of important practices and programs, including tips for replicating and information about results, as well as links to help you find more information or resources you can use.
The Network of Alcohol and Other Drugs Agencies (NADA) Policy Toolkit for non-government A&OD services has been produced as an aid to developing and reviewing operational policy documents and support their formal quality improvement program, however, there are relevant parts of this toolkit that apply to the homelessness sector.