Our People

Management Committee

Kathryn Viegas


Kathryn Viegas is a Director of Nomos Legal and is an Accredited Specialist in Immigration Law. She has practiced immigration law since 2003 and has been recognised in the AFR’s Best Lawyers list annually since 2018. A migrant herself, Kathryn started her career at the HIV/AIDS Legal Centre before moving into private practice. She has worked at a number of boutique immigration law firms, including two that she has helped to establish. Throughout her career, Kathryn has advocated for the rights of the most disenfranchised within Australia’s immigration program, including asylum seekers and people living with HIV and other medical conditions. Since 2007, Kathryn has been involved in continuing legal education through her preparation and presentation of CPD programs for Nomos, IARC, the College of Law and other organisations. Since 2019, she has taught the Graduate Diploma in Migration Law at Victoria University. She holds degrees in Psychology and Law from The University of New South Wales, a Graduate Diploma in Legal Practice from the Australian National University and a Master of Laws degree from The University of Sydney. Kathryn is also a Founding Director of The TLR Foundation, established in memory of a former client to promote bone marrow donation in Australia.

Peter Gesovic

Vice President

Peter is a doctor and has been a member of IARC for the past decade. He consults to health sector on both business and educational maters and in particular those concerned with general practice around Australia. The dynamic between traditional modes of pedagogy and emerging digital trends is a particular area of interest. He has been a close observer and student of global migration for many years using a variety of intellectual tools in the consideration of fundamental issues of human wellbeing.

Rowena Irish


Rowena is a highly experienced legal practitioner with more than 15 years experience in immigration law and previously in a top tier law firm in e-commerce and privacy. She has returned as a Director of Supra Legal, a boutique immigration law firm, after a five year appointment as a Member at the Migration and Refugee Review Tribunals. Prior to this she was acting Principal Solicitor and Director at IARC.  Rowena is a recognised expert in immigration law, having presented seminars and information sessions across a broad range of immigration and citizenship topics.  She is an MIA Accredited Educator, was named in the AFR’s Best Lawyers list 2019 and has written extensively on Australian immigration and citizenship law, including as the co-author of the 8th edition of The Immigration Kit.

Lina Tchung


Lina Tchung is Division Director, Internal Audit Division,  Risk Management Group, Macquarie Group Ltd. She has over 17 years  specialising in wealth and asset management and has worked in both Sydney and San Francisco. Lina brings a wealth of experience in Financial Reporting, Statutory Compliance, Risk Management and Governance. From 2009 to 2018, Lina was a non-executive director and finance committee member of YWCA NSW, a not-for-profit organisation on the front line for improving gender equality and eliminating violence against women. She is a member of the Chartered Accountants Australia & New Zealand and holds a Bachelor of Business (Management) and Bachelor of Commerce from the University of Queensland.

Giulio Katis


Giulio Katis is a Financial Markets professional with an academic background in mathematics and computer science. He has interests in the transformational implications of new technologies (in particular, the process of datafication), especially as it pertains to the relationship between individuals and society. Giulio is the Managing Director of Westpac’s Financial Markets eCommerce. New technologies and greater capture and use of data are transforming Financial Markets globally and bringing down traditional barriers of entry.  In this context, Giulio and his team are responsible for creating a digitally enabled and data-driven Financial Markets business, transforming the way the trading and sales units operate and service Westpac clients. He sits on the Board of the enterprise software firm R3 as a Director. (R3, in partnership with over 80 financial institutions, is looking to build and commercialize its distributed ledger/blockchain platform.)

Prior to joining Westpac he worked at Barclays Global Investors (BGI) as a Portfolio Manager, Strategist and Senior Researcher. Before moving to the world of finance, Giulio held research fellow roles at the University of Sydney and at l’Università degli Studi dell’Insubria (Como, Italy), developing mathematical models to assist in the design and reasoning about distributed systems. He has a PhD in Pure Mathematics from Sydney University. Giulio is married to Vicki and has three young daughters. Though born in Australia, he comes from a migrant family background.  Giulio believes organisations working to create equal opportunity in society (especially for the potentially vulnerable) and to combat the parochial and negative aspects of ‘entitlement’ need to be supported in Australia.

Robert Mattar


Robert Mattar is the General Manager of on demand services at Oneflare Pty Ltd. In this position Robert manages a team building technology led solutions to the delivery of household services across Australia. Previously Robert worked as CEO at sports technology start up Teamer, a sports platform used by over 100,000 sports teams in over 50 countries.

An experienced senior manager, Robert has spent over 15 years working with technology and media businesses in Europe and Australia. Robert brings with him experience in corporate fundraising, business and operations management and growth marketing. Robert has a keen interest in areas including the provision of support to vulnerable members of society and the environment. Robert is also a member of the General Assembly of Greenpeace Australia Pacific


Ali Mojtahedi

Principal Solicitor 

Ali is the Principal Solicitor at IARC. He was previously a senior solicitor and acting principal solicitor at the Refugee Advice and Casework Service. He is a former author and editor of the Immigration Kit and Immigration News, has lectured on immigration and refugee law and his writing on family reunion has been published. Ali is a member of several committees including as the chair of the Law Society of NSW Human Rights Committee, the chair of the Bankstown Community Resource Group and a co-convenor of the NSW PII committee.

Gregory Rohan


Gregory is a Solicitor and Registered Migration Agent and has worked at IARC since April 2018. Greg joined IARC from the United Nations High Commissioner for Refugees in Canberra where he worked on refugee law and policy issues, refugee status determination, resettlement and capacity building as well as undertaking several detention monitoring missions to Manus Island, Papua New Guinea. Before practicing law, Greg worked in the financial services industry in various roles in operations, project management and business development in both Australia and the United Kingdom. Greg holds a Bachelor of Arts, Bachelor of Laws and a Master of Laws, specialising in international law.

Joshua Strutt

Senior Solicitor 

Joshua is a Solicitor and Registered Migration Agent who joined IARC in 2019.  Josh came to IARC from the Refugee Advice and Casework Service (RACS), where he worked as a Senior Solicitor assisting people seeking asylum to apply for protection in Australia.  Prior to working at RACS, Josh worked as a Solicitor in a commercial law firm.  During his time there he provided pro bono legal assistance to the clients of RACS and the Homeless Persons’ Legal Service.

Jessica Schulman

Senior Solicitor

Jessica first joined IARC in 2012 as a Solicitor and Registered Migration Agent. Jessica left IARC in early 2019 and worked at the AAT as inhouse counsel in the Migration and Refugee Division before returning in October 2020 as a Senior Solicitor responsible for the development and coordination of the centre’s domestic and family violence programs.

Jessica completed a Bachelor of Arts and Law, and a Masters of International Relations at Macquarie University. Jessica’s decision to practice in immigration law came about after completing an internship in the resettlement division of the UNHCR in Bangkok. Jessica is particularly passionate about the barriers to safety and access to legal and other support services faced by women and children on temporary visas who experience domestic and family violence.

Ann Emmanuel

Solicitor and Registered Migration Agent 1911368

Ann is a Solicitor and Registered Migration Agent who joined IARC in May 2019. Ann’s previous employment was at the NSW Crown Solicitor’s Office, where she worked with the Criminal Law team on a range of both civil and criminal matters from applications for Apprehended Violence Orders to matters involving high risk offenders. Ann is passionate about social justice, particularly ensuring access to justice for vulnerable clients. She previously completed an internship with United Nations High Commissioner for Refugees in Canberra, has volunteered at both IARC and the Aboriginal Legal Service, and also co-authored a paper on the issues facing temporary migrant workers in Australia.

Sienna Aguilar

Senior Community Engagement Officer

Sienna Aguilar is a facilitator, researcher and community engagement specialist who joined IARC in October 2020. Sienna has over 12 years of professional experience across public, private, and not-for-profit organisations, with demonstrated knowledge in project management, and monitoring and evaluation, and building strong relationships. This includes leading the expansion of a national program embedding prevention of gender-based violence initiatives in urban and regional school communities. Sienna is committed to amplifying diverse voices and has worked alongside passionate feminists in the women’s movement, including as former driver of the Equality Rights Alliance (ERA) Young Women’s Advisory Group. Sienna has facilitated a wide range of social research and strategic planning projects with young people, community organisations, and grassroots advocacy groups.

Sienna has a Master of Applied Social Research, a Bachelor of Arts (Music), and is completing further postgraduate studies in Social Ecology. She believes that strengthening relationships across our systems can foster holistic client-centred practice and a more connected, equal, and compassionate society.

Jane King

Finance Coordinator

Jane commenced as IARC’s part-time Finance Officer in January 2016. She has worked in the NSW community legal sector for many years in a range of policy, management and finance roles.