Zilwa is a commercial attorney practicing in the Commercial, Corporate, Property and Labour fields of law. He carries a vast experience and has been involved in major transactions and corporate activities in line with his fields of practice and a selected few are mentioned hereunder:

Advisory
1998- Eastern Cape Development Corporation, 1999- Privatization & Sale of Connex Travel (Transnet), Corporatisation of Protekon (Transnet), 2001/3- Bidding Process of  51% of the public of Alexcor (South African Government)

Commercial Investigations
2000- Forensic Investigation of the Road Accident Fund (in association with the law firm Nkonki Sizwe Ntsaluba Incorporated) 2002/3- Forensic Investigation of the State Information Technology Agency-SITA- (in association with the law firm Nkonki Pierce & Associates)

Commercial transactions
The Development Bank of South Africa-Project Finance, The National Housing Finance Corporation-Public Private Partnership transactions, The Rural Housing Loan-Fund Securities, Transnet-Outsourcing, Eskom-Structuring of commercial transactions, The University of Transkei-Commercial law issues, South African Airways-Labour law issues. 

He also was involved in commercial transactions regarding:  

Legal Stature
Zilwa started his career in 1991 as an associate at the law firm Cohen, Weis & Simon based in New York USA and was involved in a number of substantial corporate transactions. His vast experience in general  legal matters and his high regarded skills was recognized resulting in him being appointed as an acting judge in the Labour Court of South Africa on numerous sessions since 2000. In this regard he has studied, interpreted and applied various statutes and legal authorities both on South African and International laws. Various judgments of his have been reported in the Labour Law journals. Being a conveyancer and notary public, he has acted in numerous property transactions including mortgage bonds, Notarial bonds, servitudes and transfer of property on behalf of banks, developers’ companies and individual including entities as Southfin, Standard Bank LTD, ABSA and Transnet.  Zilwa has written articles in 2003 for the South African attorney’s journal, De Rebus in the field of the Corporate law. His recent contribution towards the article “Impediments to the implementation of the whole business Securitisation in South Africa” is widely acknowledged and respected.