Mr. Valkanov has long standing practical expertise in legal searches, preparation of legal document and representation of clients in different areas of civil law, administrative, criminal law and process such as real estate law, contract law, labor law, company law, commercial law. He is a specialist in civil litigation, administrative, tax and social insurance process and criminal process.

Mr. Valkanov has been part of the Penkov,Markov & Partners team involved in the providing of legal advice and consultations, legal defence before court of The European Bank for Reconstruction and Development, International Finance Corporation USA, Mondi Stamboliiski AD in connection to commercial disputes between creditors in relation to legal actions with commercial enterprises as a going concern as well as foreclosures over such commercial enterprises pursuant to the Special Pledges Act and the legal consequences thereof; Coca Cola Hellenic Bottling Company Bulgaria in numerous court disputes with the tax authorities with respect to the exercising of tax the right to utilize tax credit under the UAT Act ; National Bank of Greece in regard to the privatization of Post Bank AD; Zagorka AD in disputes with tax authorities with respect to the exercising of tax the right to utilize tax credit under the UAT Act; Karelia Bulgaria OOD in administrative disputes with Sofia Customs in regard to the application of the law concerning the import of excise goods and the return by the state of excise taxes paid without legal ground; Alpha Bank Bulgaria AD under an administrative law-suit against the National Academy of Sciences concerning the exercising of granted right of construction and concerning the applying of construction permit for the construction of an administrative building; United Bulgarian Bank Ad under a commercial dispute with the state as regards an issued irrevocable bank guarantee.