There is contradiction in what you say. You say that the property your husband bought 20 years ago is in your name and in the third line of narration you say that the property is in his name. Actually the property is in whose name. If the property is in your husband's name and if he is the absolute owner then he will have absolute right to dispose off the property in the manner he decides. In the alternative if the property is in your name, by way of transfer by your husband, then you are the absolute owner and you can dispose off the property in the manner you decide, including your desire to give the shares to your children. In case the property is in your name, is it by sale,or gift deed. Since you are not interested in divorce, inspite of your husband having illicit relationship with a woman, better to get him counselled, so that your husband would be on right track..