Move IN and Move Out

Hi All,

I have to perform MOVE-IN and MOVE-out at premise level. I have Old Owner and old contract account plus New owner and have  created new contract.

Is there any BAPI or API in which I can perform both task together. If not please provide what can be the best possible solution for following scenario usgin BAPI and which one? Also sample code for using suggested BAPI's..

Thanks in advance.

Regards

Vijju