The course seeks to expose to the students the notions and particularities of the main legal businesses of guarantee of commercial operations. In this way, it is intended that the students can understand the main differences between the guarantees that are presented both in the civil and commercial fields, as well as special figures in the commercial field. On the other hand, the course seeks to expose to the students the mechanisms contemplated by the legal system to face the situations of insolvency, of individuals and companies. This seeks both to resolve the conjunctural situation of impossibility of payment of debts in the agreed way that affects the debtor and his creditors as well as to allow the reinsertion of the debtor to economic life, all of which benefits the economy of the country in general by clean up a troubled estate and allow it to start over.