The regulation of sale-purchase agreement by installments, financial lease and leasing agreements in the Republic of Lithuania was established only along with the new civil code. For this reason all of the above mentioned agreements are deemed as considerably new and the regulation in regards to those agreements is not sufficiently clear. As a matter of fact, all of the above mentioned types of agreements have their relative similarities, this being the reason that sometimes it becomes difficult to differ one from the other in a situation when a conflict arises as we need to define which rule of law shall be applied. It is precisely why the regulation of these specific agreements was analyzed in this survey. The regulation of these contract...