<PAGE>   1
                                                                EXHIBIT 24

                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that James H. Ozanne does hereby make,
constitute  and appoint  Mark A.  Janssen,  Michael C.  Allemang,  and Robert L.
Densmore,  and  each of  them,  the  true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     James H. Ozanne










<PAGE>   2



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that  Robert R.  Densmore  does hereby
make, constitute and appoint Mark A. Janssen,  Michael C. Allemang,  and Francis
X.  Mohan,  and  each of  them,  the true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Robert R. Densmore











<PAGE>   3



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these presents that Raymond  Barrette does hereby make,
constitute  and  appoint  Mark A.  Janssen,  Michael C.  Allemang  and Robert R.
Densmore,  and  each of  them,  the  true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Raymond Barrette











<PAGE>   4



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents that Francis X. Mohan does hereby make,
constitute  and appoint  Mark A.  Janssen,  Michael C.  Allemang,  and Robert R.
Densmore,  and  each of  them,  the  true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Francis X. Mohan











<PAGE>   5



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that Michael C.  Allemang  does hereby
make, constitute and appoint Mark A. Janssen, Robert R. Densmore, and Francis X.
Mohan,  and  each  of  them,  the  true  and  lawful   attorney-in-fact  of  the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Michael C. Allemang











<PAGE>   6



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that Terry  Baxter does  hereby  make,
constitute  and appoint  Mark A.  Janssen,  Michael C.  Allemang,  and Robert R.
Densmore,  and  each of  them,  the  true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Terry Baxter











<PAGE>   7



                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that Mark A. Janssen does hereby make,
constitute and appoint  Michael C.  Allemang,  Robert L. Densmore and Francis X.
Mohan,  and  each  of  them,  the  true  and  lawful   attorney-in-fact  of  the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Mark A. Janssen











<PAGE>   8


                    SOURCE ONE MORTGAGE SERVICES CORPORATION


         KNOW ALL MEN by these  presents  that Roger K. Taylor does hereby make,
constitute  and appoint  Mark A.  Janssen,  Michael C.  Allemang,  and Robert R.
Densmore,  and  each of  them,  the  true  and  lawful  attorney-in-fact  of the
undersigned,  with full power of  substitution  and  revocation,  for and in the
name,  place and stead of the  undersigned,  to execute  and  deliver the Annual
Report on Form 10-K of Source One  Mortgage  Services  Corporation  for the year
ended December 31, 1997, and any and all amendments thereto;  such Form 10-K and
each such  amendment to be in such form and to contain such terms and provisions
as said attorney or  substitute  shall deem  necessary or desirable;  giving and
granting unto said attorney,  or to such person or persons as in any case may be
appointed  pursuant to the power of  substitution  herein given,  full power and
authority  to do and perform any and every act and thing  whatsoever  requisite,
necessary or, in the opinion of said attorney or substitute,  able to be done in
and  about  the  premises  as  fully  and to all  intents  and  purposes  as the
undersigned  might or could  do if  personally  present,  hereby  ratifying  and
confirming all that said attorney for such substitute shall lawfully do or cause
to be done by virtue hereof.

         IN WITNESS  WHEREOF,  the undersigned has duly executed this instrument
as of the 23rd day of March, 1998.



                                                     --------------------------
                                                     Roger K. Taylor