3:

|Exhibit 99.4
LB-UBS Comm. Mtge. Trust 2003-C1Aggregate Statement of Principal and Interest Distributions to Certificateholders
for January 2003 to December 2003
|----------------------------------------------------------------------------------------------------------------------------------------------------------------
|Class                                                                                                                                                           
|R-LR-C                                                                                                                                                          
|R-LR-H                                                                                                                                                          
|R-LR                                                                                                                                                            
|R-I                                                                                                                                                             
|R-II                                                                                                                                                            
|A-1                                                                                                                                                             
|A-1B                                                                                                                                                            
|A-2                                                                                                                                                             
|A-3                                                                                                                                                             
|A-4                                                                                                                                                             
|B                                                                                                                                                               
|C                                                                                                                                                               
|D                                                                                                                                                               
|E                                                                                                                                                               
|F                                                                                                                                                               
|G                                                                                                                                                               
|H                                                                                                                                                               
|J                                                                                                                                                               
|K                                                                                                                                                               
|L                                                                                                                                                               
|M                                                                                                                                                               
|N                                                                                                                                                               
|P                                                                                                                                                               
|Q                                                                                                                                                               
|R-III                                                                                                                                                           
|S                                                                                                                                                               
|T                                                                                                                                                               
|X-CL                                                                                                                                                            
|X-CP                                                                                                                                                            
|V