| 25.05.2012 | Medical practices: Reorganisation and insolvency | IWW Institut | Düsseldorf |
| 29.03.2012 | The medical practice, the medical center and the hospital before and during insolvency | DAI | Düsseldorf |
| 07.10.2011 | The doctor in crisis and insolvency | AG MedR | Berlin |
| 25.11.2010 | Residence permit in Germany | Eurodom/LEG | Thüringen Moscow |
| 12.11.2010 | Charted accountant and his GmbH - engagement in times of recession | MLP | Berlin |
| 07.11.2010 | Improvement of the liquidity | Tax adviser's association Westfalen-Lippe e.V. | Münster |
| 18.09.2010 | Residence permit in Germany | Eurodom | Moskow |
| 01.07.2010 | Charted accountant and his GmbH - engagement in times of recession | MLP | Erlangen |
| 05.05.2010 | Charted accountant and his GmbH - engagement in times of recession | MLP | Bielefeld |
| 14.04.2010 | Charted accountant and his GmbH - engagement in times of recession | MLP | Erlangen |
| 18.03.2010 | The import of russian foods to Germany - judicial aspects | Consulate General of the russian republic | Bonn |
| 26./27.02.2010 | Selected problems of medical practices experiencing crises and insolvency | DAI | Heusenstamm |
| 03.02.2010 | Charted accountant and his GmbH - engagement in times of recession | MLP | Osnabrück |
| 14.12.2009 | Residence permit in Germany | LEG Thuringia | Erfurt |
| 26.10.2009 | Actual legal problems of medical practices experiencing crises and insolvency | DAI | Bochum |
| 29.09.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Münster |
| 19.09.2009 | Resident permit and incorporation in Germany | Prokonsul | Moscow |
| 09.09.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Hannover |
| 25.06.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Würzburg |
| 17.06.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Dortmund |
| 25.05.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Darmstadt |
| 14.05.2009 | Charted accountant and his GmbH - engagement in times of recession | MLP | Frankfurt am Main |
| 24.04.2009 | Medical practices, medical centers and hospitals before and during insolvency | DAI | Berlin |
| 25.03.2009 | Charted accountant and his GmbH - engagement | MLP | Kassel |
| 19.03.2009 | "Recapitalisation according to plan" - practical examples I. | Recapitalisation Portal/DAI | Bonn |
| 01.02.2009 | The new entrepreneur's company | Club Àkzent | St. Augustin |
| 21.01.2009 | Labor law for doctors | Deutsche Bank | Cologne |
| 10.12.2008 | Purchase of real estate and residence permit in Germany | Avers Group | St. Petersburg |
| 20.10.2008 | The reform of the law of limited corporations (MoMiG) | DAI | Heusenstamm |
| 25.09.2008 | Your gateway to Russia: Manufacturing, trade, market of real estate, aspects of tax and law. | b2d | Cologne |
| 12.09.2008 | Crises and possible crisis management strategies in public health: insolvency of doctors and hospitals | InsoKolleg | Düsseldorf |
| 23.06.2008 | The reform of the law of limited corporations (MoMiG) | HDI Gerling | Wetzlar |
| 07.06.2008 | Investigation before entering a long contractual commitment - employment contract law for medical practices | Verband medizinischer Fachberufe e.V. | Leverkusen |
| 06.06.2008 | Medical practices in crisis and insolvency | DAI | Heusenstamm |
| 07.05.2008 | Exemption from execution concerning the old age provisions of self-employed persons and free-lancers | Cologneer Bank | Cologne |
| 23.04.2008 | The reform of the law of limited corporations (MoMiG) | Horbach | Cologne |
| 27.02.2008 | Safeguarding the livelihood of medical practitioners | Deutsche Bank AG | Cologne |
| 07.02.2008 | The reform of the law of limited corporations (MoMiG) | HDI Gerling | Lüdenscheid |
| 12.12.2007 | Exemption from execution concerning the old age provisions of self-employed persons and free-lancers | Cologneer Bank | Cologne |
| 18.09.2007 | The reform of the law of limited corporations (MoMiG) | Deutsche Bank | Cologne |
| 05.09.2007 | Safeguarding start-up businesses of self-employed persons | Horbach | Cologne |
| 04.09.2007 | Exemption from execution concerning the old age provisions of self-employed persons and free-lancers | Gerling | Cologne |
| 28.08.2007 | The general manager of a limited corporation | Gerling | Ruhr-Lenne |
| 14.06.2007 | Telephone call service concerning the safeguarding of one's livelihood | IHK Cologne | Cologne |
| 09.03.2007 | Contractual and economic defects - commitments/curing chances in the tax and insolvency law field | MLP | Cologne |
| 02.03.2007 | Self-employed persons in crisis and insolvency | RWS Verlag | Cologne |
| 27.10.2006 | Self-employed persons in crisis and insolvency | RWS-Verlag | Berlin |
| 17.10.2006 | Tax consultancy during the crisis of a limited corporation | Steuerberaterverband Erfurt | Jena |
| 17.10.2006 | Liability risks of a limited corporation's general manager | Technologie und Medienzentrum Erfurt GmbH/ Gerling | Erfurt |
| 28.04.2006 | Self-employed persons in crisis and insolvency | RWS-Verlag | Cologne |
| 25.04.2006 | The 10 Commandments of small businessmen | IHK- Cologne/ MIT/ Gerling | Cologne |
| 14.03.2006 | The general manager of a limited corporation | Gerling | Koblenz |
| 07.03.2006 | The general manager of a limited corporation | Gerling | Hagen |
| 15.02.2006 | Starting afresh after insolvency | Klondike- Business Club | Cologne |
| 14.02.2006 | The general manager of a limited corporation | Gerling | Nordhausen |
| 18.11.2005 | Self-employed persons during insolvency | RWS- Verlag | Berlin |
| 16.11.2005 | The general manager of a limited corporation | Gerling | Cologne |
| 02.11.2005 | The general manager of a limited corporation | Gerling | Siegen |
| 27.10.2005 | The general manager of a limited corporation | Gerling | Hagen |
| 20.10.2005 | The general manager of a limited corporation | Gerling | Lüdenscheid |
| 06.10.2005 | The general manager of a limited corporation | Gerling | Erfurt |
| 29.09.2005 | The general manager of a limited corporation | Gerling | Leipzig |
| 17.08.2005 | The general manager of a limited corporation | Gerling | Magdeburg |
| 04.08.2005 | The general manager of a limited corporation | Gerling/ Arbeitgeberverband Iserlohn | Iserlohn |
| 28.07.2005 | The general manager of a limited corporation | Gerling | München |
| 23.06.2005 | The general manager of a limited corporation | Gerling | Bielefeld |
| 07.06.2005 | The 10 Commandments of a limited corporation's general manager | Gerling | Cologne |
| 19.05.2005 | The general manager of a limited corporation | Gerling | Dortmund |
| 17.05.2005 | The general manager of a limited corporation | Gerling | Mainz |
| 12.05.2005 | The general manager of a limited corporation | Gerling | Stuttgart |
| 29.04.2005 | Limited Corporations during crises | Kay Deubner Fachbuchservice | Cologne |
| 26.04.2005 | The general manager of a limited corporation | Gerling | Kassel |
| 19.04.2005 | The general manager of a limited corporation | Gerling | Frankfurt |
| 14.04.2005 | The general manager of a limited corporation | Gerling | Nürnberg |
| 10.03.2005 | The general manager of a limited corporation | Gerling | Hamburg |
| 09.03.2005 | The general manager of a limited corporation | Gerling | Münster |
| 02.12.2004 | Rights and obligations of a limited corporation's general manager | Gründer und Technologie- Zentrum | Gummersbach |
| 30.11.2004 | Legal aspects in overcoming crises | VOV GmbH | Cologne |
| 09.11.2004 | The general manager of a limited corporation | Gerling | Cologne |
| 26.10.2004 | The general manager of a limited corporation | Gerling | Cologne |
| 04.08.2004 | Civil-law liability of the general manager of a limited corporation | Gerling | Velbert |
| 03.08.2004 | Insolvency from the business and private perspectives | Bürger-Konvent e.V. | Bonn |
| 28.07.2004 | The general manager of a limited corporation | Gerling | Velbert |
| 10.07.2004 | The general manager of a limited corporation | Gerling | Kaarst |
| 06.07.2004 | Civil-law liability of a limited corporation's general manager | Gerling | Kaarst |
| 31.03.2004 | The general manager of a limited corporation / Banks' liabilities | Volksbank | Oberberg |
| 27.01.2004 | Civil-law liability of a limited corporation's general manager | Gerling | Cologne |
| 08.10.2003 | The general manager of a limited corporation | Kay Deubner Fachbuchservice | Cologne |
| 20.06.2002 | Insolvency law | Deutsche Bank | Cologne |
| 20.06.2001 | Thinking it over during lifetime (inheritance and bequeathing) | WestLB | Münster |
| 15.05.2001 | Thinking it over during lifetime (inheritance and bequeathing) | WestLB | Cologne |
| 20.11.1999 | Insolvency law | 2. Unternehmer- innentag der Regionalstelle Rhein-Sieg |
Troisdorf |