Grega is managing partner of the law firm Rojs, Peljhan, Prelesnik & Partners o.p, d.o.o. He joined the firm in 1994 and became a partner in 1999. As a partner in the law firm he specialises in banking and finance, insolvency and restructuring and commercial and corporate law. Grega has been advising many Slovene and international clients including UBS, Erste Bank, Hypo, Raiffeisen, Unicredit, EBRD, EIB, Hewlett Packard, National Instruments Corporation, Goodyear, Novartis and many others, on different finance, M&A, general corporate and commercial and insolvency law and restructuring issues, including issues related to syndicated loans, securitisations, collateralisation, close-out netting, bankruptcy remoteness and similar matters.

His recent deals in relation to insolvency and restructuring practice include advising a Slovenian bank syndicate in the bankruptcy proceedings of one of the largest Slovenian telecommunication companies, T-2; advising a creditor with the largest exposure in restructuring of one of the largest Slovenian retailers; and advising creditors in compulsory settlement of financial holding Sava. In addition, he advised a multinational bank on debt restructuring and the sale process of Kempinski Palace hotel in Portoro┼ż and the financing of the real estate project (construction of the residential building with over 100 flats). He has been representing a client in a dispute with the construction company, regarding its legal relations with future tenants, purchasers of real estate and in finding a solution how to continue with a project, after the main construction company went bankrupt.