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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G
                                 (Rule 13d-102)

                   INFORMATION TO BE INCLUDED IN STATEMENTS FILED
          PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO
                        FILED PURSUANT TO RULE 13d-2(b)

                       Under the Securities Exchange Act
                                    of 1934

               (Amendment No. 2 to Schedule 13D on Schedule 13G)(*)
                                        

                        Century Business Services, Inc.
           (formerly known as International Alliance Services, Inc.)
                                (Name of Issuer)
                                        
                          Common Stock, $.01 par value
                         (Title of Class of Securities)


                                  156490 10 4
                                 (CUSIP Number)

                                  July 22, 1998
            (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to
which this Schedule is filed:

[ ]       Rule 13d-1(b)
[X]       Rule 13d-1(c)
[ ]       Rule 13d-1(d)  

(*)The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities,
and for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).

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CUSIP NO. 156490 10 4                   13G            PAGE 2 OF 8 PAGES


  (1)     NAMES OF REPORTING PERSONS                 
          I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

          H. Wayne Huizenga 
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [ ]
                                                                    (b)   [ ]

          --------------------------------------------------------------------- 

  (3)     SEC USE ONLY


          ---------------------------------------------------------------------

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          United States of America
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                    7,644,444(1)  
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                     -0-
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                   7,644,444(1)  
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                               -0-
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

          7,644,444(1)  
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
          SHARES*                                                         [   ]


          ---------------------------------------------------------------------

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

          12.2%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

          IN
          ---------------------------------------------------------------------
                    *SEE INSTRUCTIONS BEFORE FILLING OUT!


(1) Includes Warrants to purchase 4,222,222 shares of common stock of the 
    Issuer which warrants are exercisable within 60 days of the date hereof. 
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CUSIP NO. 156490 10 4                    13G            PAGE 3 OF 8 PAGES


  (1)     NAMES OF REPORTING PERSONS                 
          I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

          Huizenga Investments Limited Partnership
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [ ]
                                                                    (b)   [ ]

          --------------------------------------------------------------------- 

  (3)     SEC USE ONLY


          ---------------------------------------------------------------------

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          Nevada 
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                    7,644,444(1)  
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                     -0-         
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                   7,644,444(1)           
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                               -0-           
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

          7,644,444(1)          
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
          SHARES*                                                         [   ]

          ---------------------------------------------------------------------

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

          12.2%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

          PN
          ---------------------------------------------------------------------
                    *SEE INSTRUCTIONS BEFORE FILLING OUT!


(1) Includes Warrants to purchase 4,222,222 shares of the common stock of the 
    Issuer which warrants are exercisable within 60 days of the date hereof. 

                  
                             
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CUSIP NO. 156490 10 4                    13G            PAGE 4 OF 8 PAGES


  (1)     NAMES OF REPORTING PERSONS                 
          I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

          Huizenga Investments, Inc.
          ---------------------------------------------------------------------

  (2)     CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a)   [ ]
                                                                    (b)   [ ]

          --------------------------------------------------------------------- 

  (3)     SEC USE ONLY


          ---------------------------------------------------------------------

  (4)     CITIZENSHIP OR PLACE OF ORGANIZATION                      

          Nevada 
          ---------------------------------------------------------------------

                       (5)     SOLE VOTING POWER                    
  NUMBER OF                    7,644,444(1)              
   SHARES              --------------------------------------------------------
 BENEFICIALLY          (6)     SHARED VOTING POWER                  
  OWNED BY                     -0-         
    EACH               --------------------------------------------------------
  REPORTING            (7)     SOLE DISPOSITIVE POWER               
 PERSON WITH                   7,644,444(1)           
                       --------------------------------------------------------
                       (8)     SHARED DISPOSITIVE POWER             
                               -0-           
                       --------------------------------------------------------

  (9)     AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON         

          7,644,444(1)          
          ---------------------------------------------------------------------

 (10)     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
          SHARES*                                                         [   ]

          ---------------------------------------------------------------------

 (11)     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9           

          12.2%
          ---------------------------------------------------------------------

 (12)     TYPE OF REPORTING PERSON*

          CO
          ---------------------------------------------------------------------
                    *SEE INSTRUCTIONS BEFORE FILLING OUT!

(1) Includes Warrants to purchase 4,222,222 shares of common stock of the
    Issuer which warrants are exercisable within 60 days of the date hereof. 
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CUSIP NO. 156490 10 4                     13G                  PAGE 5 of 8 PAGES



Item 1(a)      Name of Issuer:

               Century Business Services, Inc. (formerly known as International
               Alliance Services, Inc.)

Item 1(b)      Address of Issuer's Principal Executive Offices:
          
               6480 Rockside Woods Boulevard South 
               Suite 330
               Cleveland, Ohio 44131

Item 2(a)      Name of Persons Filing:

               H. Wayne Huizenga 
               Huizenga Investments Limited Partnership ("HILP")
               Huizenga Investments, Inc. ("HII")

Item 2(b)      Address of Principal Business Office or, if none, Residence:

               H. Wayne Huizenga:

               450 East Las Olas Boulevard, Suite 1500
               Fort Lauderdale, Florida 33301
               
               HILP and HII:

               P.O. Box 50102
               Henderson, Nevada 89106

 
Item 2(c)      Citizenship:

               H. Wayne Huizenga:   
               United States of America
               
               HILP and HII: 
               Nevada 

Item 2(d)      Title of Class of Securities:
          
               Common Stock, par value $.01 per share

Item 2(e)      CUSIP Number: 156490 10 4

                    

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CUSIP NO.  156490  10 4               13G                      PAGE 6 OF 8 PAGES
 

ITEM 3         IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR
               13d-2(b), CHECK WHETHER THE PERSON FILING IS A:

     (a) ( )   BROKER OR DEALER REGISTERED UNDER SECTION 15 OF THE ACT

     (b) ( )   BANK AS DEFINED IN SECTION 3(a)(6) OF THE ACT

     (c) ( )   INSURANCE COMPANY AS DEFINED IN SECTION 3(a)(19) OF THE ACT

     (d) ( )   INVESTMENT COMPANY REGISTERED UNDER SECTION 8 OF THE INVESTMENT
               COMPANY ACT

     (e) ( )   INVESTMENT ADVISER IN ACCORDANCE WITH RULE 13d-1(b)(1)(ii)(E)

     (f) ( )   EMPLOYEE BENEFIT PLAN OR ENDOWMENT FUND IN ACCORDANCE WITH 
               SECTION 240.13d-1(b)(1)(ii)(F)
          
     (g) ( )   PARENT HOLDING COMPANY OR CONTROL PERSON, IN ACCORDANCE WITH 
               SECTION 240.13d-1(b)(ii)(G)

     (h) ( )   A SAVINGS ASSOCIATION AS DEFINED IN SECTION 3(b) OF THE FEDERAL
               DEPOSIT INSURANCE ACT (12 U.S.C. 1813)

     (i) ( )   A CHURCH PLAN THAT IS EXCLUDED FROM THE DEFINITION OF AN
               INVESTMENT COMPANY UNDER SECTION 3(c)(14) OF THE INVESTMENT 
               COMPANY ACT OF 1940 (15 U.S.C. 80a-3)

     (j) ( )   GROUP, IN ACCORDANCE WITH SECTION 240.13d-1)(b)(1)(ii)(J)

             

     If this statement is filed pursuant to Rule 13d-1(c), check this box. [X]


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CUSIP NO.  156490  10 4               13G                      PAGE 7 OF 8 PAGES


ITEM 4         OWNERSHIP:     

     (a)       Amount Beneficially Owned:

               H. Wayne Huizenga(1): 
               7,644,444(2)  

               HILP: 
               7,644,444(2)  

               HII:
               7,644,444(2)  

     (b)       Percent of Class:

               H. Wayne Huizenga:  
               12.2%

               HILP: 
               12.2%

               HII:
               12.2%

     (c)       Number of Shares as to Which Such Person Has:

                (i) Sole power to vote
     
                    H. Wayne Huizenga:  
                    7,644,444(2)  

                    HILP: 
                    7,644,444(2)  

                    HII:
                    7,644,444(2)  

               (ii) Shared power to vote or to direct the vote

                    H. Wayne Huizenga:  
                    -0-         

                    HILP: 
                    -0-         

                    HII:
                    -0-          

              (iii) Sole power to dispose or to direct the disposition of

                    H. Wayne Huizenga:  
                    7,644,444(2)  

                    HILP: 
                    7,644,444(2)  

                    HII:
                    7,644,444(2)  

               (iv) Shared power to dispose or to direct the disposition of

                    H. Wayne Huizenga:  
                    -0-         

                    HILP: 
                    -0-         

                    HII:
                    -0-          


- ---------------
(1)Mr. Huizenga is the sole shareholder of HII. HII's principal business is to
serve as the sole general partner of HILP. HILP's principal business is to
make, hold, and manage certain of Mr. Huizenga's investments in publicly
traded and other companies, including the 7,644,444 shares referenced in this
Schedule 13G.


(2) Includes Warrants to purchase 4,222,222 shares of common stock of the 
Issuer which warrants are exercisable within 60 days of the date hereof. 
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CUSIP NO.  156490  10 4                  13G                 PAGES 8 of 8 PAGES


ITEM 5         OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

               Not applicable

ITEM 6         OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:

               Not applicable

ITEM 7         IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
               ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING 
               COMPANY:

               Not applicable

ITEM 8         IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:

               Not applicable

ITEM 9         NOTICE OF DISSOLUTION OF GROUP:

               Not applicable

ITEM 10        CERTIFICATION:

               By signing below I certify that, to the best of my knowledge and
               belief, the securities referred to above were not acquired and
               are not held for the purpose of or with the effect of changing or
               influencing the control of the issuer of the securities and were
               not acquired and are not held in connection with or as a
               participant in any transaction having that purpose or effect.


                                   Signature

     After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Date:     August   , 1998.            /s/ H. Wayne Huizenga
                                      ----------------------------------
                                      H. Wayne Huizenga

                                      Huizenga Investments Limited Partnership,
                                        a Nevada limited partnership



                                      By: /s/ Huizenga Investments, Inc., a
                                              Nevada corporation, as general
                                              partner
                                              

                                      By: /s/ Richard C. Rochon
                                          ------------------------------
                                          Richard C. Rochon
                                          President


                                      Huizenga Investments, Inc.
                                              


                                      By: /s/ Richard C. Rochon
                                          ------------------------------
                                          Richard C. Rochon
                                          President