The fundamental distinction of the option of lifelong condition with similar institutions with judicial procedure analysis

Option of condition, the subject of Article 399 of Civil Law is in the cases that for each of the purchaser or customer or both of them or third person is given authority of  termination of transaction in the determined term and if this condition  is being without term, based on Article 401 of Civil Law, its execution guaranty is invalidity of condition and contract. In some of the contracts , it is inserted that if this contract after agreeing  and signing to any reason, each of the parties cancel the contract,  an amount as loss is paid, regard validity of authenticity or voiding of such condition between Doctrine and jurisprudence,  there is  subjective of belief and procedure that in this case, it  seems unlimited option of condition has not been determined but, it has been mentioned and if cancellation to any reason, this rate of loss is obtained by the parties and the mentioning to the termination is limited to legal options or contractual option. Also, in the cases that the parties make the contract of option of conditions for their life period or third person, there is disagreement and Civil law hasn’t made an explicit sentence in this regard that in this paper, additional to analysis of viewpoint of opponents and supporters, the preferred opinion will be discussed proportional to legal and jurisprudential principles and judgmental procedure.