Taking into account that preliminary sale - purchase agreement of real estate is an important and frequently used legal instrument in Lithuanian legal relationship but legal research on such agreement is poor, also case law on this issue is not consistent, this master thesis is analyzing the problems of practical use of preliminary sale – purchase agreement of real estate in Lithuanian civil legal relationship. The place of such agreement in pre-contractual and general civil legal relationship, the obligatory and other conditions of such agreement, civil liability for the breach of preliminary sale - purchase agreement of real estate, the interaction between the preliminary and primary agreement are also discussed in this master thesis. The main tendencies of application of the preliminary sale – purchase agreement of real estate in Lithuanian law and the basic elements of such agreement are described in this master thesis, also the definition of preliminary sale – purchase agreement of real estate is given. The evaluation of essential features which distinguish the preliminary sale – purchase agreement of real estate and primary sale - purchase agreement of real estate, also the criteria which allow to distinguish them are discussed. Also a great attention is paid to payments according to terms and conditions of the preliminary sale – purchase agreement of real estate. Security of obligation deriving from such agreement is also an object of this master thesis. On the basis... [to full text]