I am going to start your first question. Turkish man your second husband for turkey legal sistem says your provious merriage s children from your ex husband and your children family name is your ex husband name. If your turkish husband adapt your children and he give a familyname he would be legal father for them( not biolojic )and he safe them he should keep them if you want to go back you country. Your second problem you didnt tell us because your exhusband wants your children ?
Your second question: If you have property with your husband you would be on the safe because turkish legal sistem take safe woman .
You have 2 option for your property
firstly You take separate of property or you beleive your husband you would take community property
Our cammon law take you safe and if he go to bankrupt you would be safe for your property.
My advice you yourself property your and if you have new property you would take contract with your husband.
l hope you ll good
Atorney Yasemin gulluoglu
Texas / houston