Item 1. Business.
Not applicable.
Item 2.
Item 2. Properties.
Not applicable.
Item 3.
Item 3. Legal Proceedings.
The registrant knows of no material pending legal proceedings involving the trusts created under the Pooling and Servicing Agreement (the Trusts), the Trustee, the Servicer or the registrant with respect to the Trusts other than routine litigation incidental to the duties of the respective parties.
Item 4.
Item 4. Submission of Matters to a Vote of Security Holders.
None.
PART II
Item 5.
Item 5. Market for registrant's Common Equity and Related Stockholder Matters.
Records provided to the Trust by the DTC and the Trustee indicate that as of December 31, 2004, the number of holders of record for each class of Certificate were as follows:
	 Class 1A1		1 	 Class 1A2		1 	 Class 2A1		1 	 Class 2A2		1 	 Class 3A		1 	 Class 4A		1 Class 5A		1 Class M1		1 Class M2		1 Class M3		1 Class 6A1		1 Class 6A2		1 Class 6M1		1 Class 6M2		1 Class 6M3		1 Class 6B1		1 Class 6B2		1 Class 6B3		1 Class 7A		1
	 Total: 	19
Item 6.
Item 6. Selected Financial Data.
Not applicable.
Item 7.
Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operation.
Not applicable.
Item 7A.
Item 7A. Quantitative and Qualitative Disclosures about Market Risk.
Not applicable.
Item 8.
Item 8. Financial Statements and Supplementary Data.
See Item 15(a), Exhibits 99.1, 99.2, 99.3, 99.4 for information provided in lieu of information required by Item 302 of Regulation S-K.
Item 9.
Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure.
None.
Item 9A.
Item 9A. Controls and Procedures.
Not applicable.
Item 9B.
Item 9B. Other Information
None.
PART III
Item 10.
Item 10. Directors and Executive Officers of the Registrant.
Not applicable.
Item 11.
Item 11. Executive Compensation.
Not applicable.
Item 12.
Item 12. Security Ownership of Certain Beneficial Owners and Management.
Not applicable.
Item 13.
Item 13. Certain Relationships and Related Transactions.
Not applicable.
Item 14.
Item 14. Principal Accounting Fees and Services.
Not applicable.
PART IV
Item 15.
Item 15. Exhibits, Financial Statement Schedules, and Reports on Form 8-K.
(a) Exhibits
(99.1) Report of Independent Registered Public Accounting Firm
a) MORTGAGE BACKED NOTES
(99.2) Report of Management as to Compliance with Minimum Servicing Standards for the year ended December 31, 2004.
a) MORTGAGE BACKED NOTES
(99.3) Annual Statements of Compliance under the Servicing Agreements for the year ended December 31, 2004.
a) MORTGAGE BACKED NOTES
(99.4) Aggregate Statement of Principal and Interest Distributions to Certificate Holders.
(b) Reports on Form 8-K, dated as of December 31, 2004, were filed by 	the Company in order to provide	the statements for the monthly 	distributions to holders of the Certificates. No other reports on 	Form 8-K have been filed during the last quarter of the period 	covered by this report.
(c) Not applicable.
(d) Omitted.
SIGNATURES
Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized:
AMERICAN HOME MORTGAGE SECURITIES LLC AMERICAN HOME MORTGAGE INVESTMENT TRUST SERIES 2004-4 (Registrant)
Signed:
By: Michael Strauss, Chief Executive Officer
By: /s/ Michael Strauss, Chief Executive Officer
Dated: March 29, 2005
SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT TO SECTION 15(d) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED SECURITIES PURSUANT TO SECTION 12 OF THE ACT.
(a)(i) No annual report is provided to the Certificateholders other than with respect to aggregate principal and interest distributions.
(a)(ii) No proxy statement, form of proxy or other proxy soliciting material has been sent to any Certificateholder with respect to any annual or other meeting of Certificateholders.
		 SARBANES OXLEY CERTIFICATION
I, Michael Strauss, certify that:
1. 	I have reviewed this annual report on Form 10-K, and all reports 	on Form 8-K containing distribution or servicing reports filed in 	respect of periods included in the year covered by this annual 	report, of American Home Mortgage Investment Trust 2004-4.
2.	Based on my knowledge, the information in these reports, taken as 	a whole, does not contain any untrue statement of a material fact 	or omit to state a material fact necessary to make the statements 	made, in light of the circumstances under which such statements 	were made, not misleading as of the last day of the period covered by this annual report;
3. 	Based on my knowledge, the distribution or servicing information 	required to be provided to the trustee by the servicer under the 	pooling and servicing, or similar, agreement, for inclusion in 	these reports is included in these reports;
4. 	I am responsible for reviewing the activities performed by the 	servicer under the pooling and servicing, or similar, agreement 	and based upon my knowledge and the annual compliance review 	required under that agreement, and except as disclosed in the 	reports, the servicer has fulfilled its obligations under that 	agreement; and
5. 	The reports disclose all significant deficiencies relating to the 	servicers compliance with the minimum servicing standards based 	upon the report provided by an independent public accountant, 	after conducting a review in compliance with the Uniform Single 	Attestation Program for Mortgage Bankers or similar procedure, as 	set forth in the pooling and servicing, or similar, agreement, that is included in these reports.
In giving the certifications above, I have reasonably relied on information provided to me by the following unaffiliated parties: The Bank of New York, as Indenture Trustee.
Date: March 29 , 2005
By: /s/ Michael Strauss Name:	Michael Strauss Company: American Home Mortgage Servicing, Inc. Title: Chief Executive Officer
Ex-99.1
Deloitte & Touche
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors of American Home Mortgage Servicing, Inc. Melville, New York
We have examined managements assertion that American Home Mortgage Servicing, Inc. (formerly Columbia National, Incorporated) (the Company) has complied as of and for the year ended December 31, 2004, with its established minimum servicing standards described in the accompanying Mortgage Bankers Association of Americas Uniform Single Attestation Program for Mortgage Bankers (USAP) as of and for the year ended December 31, 2004. Management is responsible for the Companys compliance with those minimum servicing standards. Our responsibility is to express an opinion on managements assertion about the Companys compliance based on our examination.
Our examination was conducted in accordance with attestation standards established by the American Institute of Certified Public Accountants, as adopted by the Public Company Accounting Oversight Board and accordingly, included examining, on a test basis, evidence about the Companys compliance with its minimum servicing standards and performing such other procedures as we considered necessary in the circumstances. We believe that our examination provides a reasonable basis for our opinion. Our examination does not provide a legal determination on the Companys compliance with its minimum servicing standards.
In our opinion, managements assertion that the Company complied with the aforementioned minimum servicing standards as of and for the year ended December 31, 2004, is fairly stated, in all material respects based on the criteria set forth in Appendix I.
Princeton, New Jersey March 25, 2005
Ex-99.2
MANAGEMENT ASSERTION
As of and for the year ended December 31, 2004, American Home Mortgage Servicing, Inc. (formerly Columbia National, Incorporated) (the Company) has complied in all material respects with the Companys established minimum servicing standards for residential mortgage loans as set forth in Appendix I (the Standards). The Standards are based on the Mortgage Bankers Association of Americas Uniform Single Attestation Program for Mortgage Bankers. As of and for this same period, the Company had in effect a fidelity bond in the amount of $15,000,000 and errors and omissions policy in the amount of $15,000,000.
March 25, 2005
/s/Michael Strauss Michael Strauss Chief Executive Officer
/s/Stephen Hozie Stephen Hozie Chief Financial Officer
/s/Robert Bernstein Robert Bernstein Controller
/s/David Friedman David Friedman Executive Vice President
APPENDIX I
MINIMUM SERVICING STANDARDS AS SET FORTH IN THE MORTGAGE BANKERS ASSOCIATION OF AMERICAS UNIFORM SINGLE ATTESTATION PROGRAM FOR MORTGAGE BANKERS
I. CUSTODIAL BANK ACCOUNTS
1. Reconciliations shall be prepared on a monthly basis for all custodial bank accounts and related bank clearing accounts. These reconciliations shall:
Be mathematically accurate Be prepared within forty-five (45) calendar days after the cutoff date Be reviewed and approved by someone other than the person who prepared the reconciliation
Document explanations for reconciling items. These reconciling items shall be resolved within ninety (90) calendar days of their original identification.
2. Funds of the servicing entity shall be advanced in cases where there is an overdraft in an investors or a mortgagors account.
3. Each custodial account shall be maintained at a federally insured depository institution in trust for the applicable investor.
4. Escrow funds held in trust for a mortgagor shall be returned to the mortgagor within thirty (30) calendar days of payoff of the mortgage loan.
II. MORTGAGE PAYMENTS
1. Mortgage payments shall be deposited into the custodial bank accounts and related bank clearing accounts within two business days of receipt.
2. Mortgage payments made in accordance with the mortgagors loan documents shall be posted to the applicable mortgagor records within two business days of receipt.
3. Mortgage payments shall be allocated to principal, interest, insurance, taxes, or other escrow items in accordance with the mortgagors loan documents.
4. Mortgage payments identified as loan payoffs shall be allocated in accordance with the mortgagors loan documents.
III. DISBURSEMENTS
1. Disbursements made via wire transfer on behalf of a mortgagor or investor shall be made only by authorized personnel.
2. Disbursements made on behalf of a mortgagor or investor shall be posted within two business days to the mortgagors or investors records maintained by the servicing entity.
3. Tax and insurance payments shall be made on or before the penalty or insurance policy expiration dates, as indicated on tax bills and insurance premium notices, respectively, provided that such support has been received by the servicing entity at least thirty (30) calendar days prior to these dates.
4. Any late payment penalties paid in conjunction with the payment of any tax bill or insurance premium notice shall be paid from the servicing entitys funds and not charged to the mortgagor, unless the late payment was due to the mortgagors error or omission.
5. Amounts remitted to investors per the servicers investor reports shall agree with cancelled checks, or other form of payment, or custodial bank statements.
6. Unused checks shall be safeguarded so as to prevent unauthorized access.
IV. INVESTOR ACCOUNTING AND REPORTING
1. The servicing entitys investor reports shall agree with, or reconcile to, investors records on a monthly basis as to the total unpaid principal balance and number of loans serviced by the servicing entity.
V. MORTGAGOR LOAN ACCOUNTING
1. The servicing entitys mortgage loan records shall agree with, or reconcile to, the records of mortgagors with respect to the unpaid principal balance on a monthly basis.
2. Adjustments on ARM loans shall be computed based on the related mortgage note and any ARM rider.
3. Escrow accounts shall be analyzed, in accordance with the mortgagors loan documents, on at least an annual basis.
4. Interest on escrow accounts shall be paid, or credited, to mortgagors in accordance with the applicable state laws.
VI. DELINQUENCIES
1. Records documenting collection efforts shall be maintained during the period a loan is in default and shall be updated at least monthly. Such records shall describe the entitys activities in monitoring delinquent loans including, for example, phone calls, letters, and mortgage payment rescheduling plans in cases where the delinquency is deemed temporary (e.g., illness or unemployment).
VII. INSURANCE POLICIES
1. A fidelity bond and errors and omissions policy shall be in effect on the servicing entity throughout the reporting period in the amount of coverage represented to investors in managements assertion.
Ex-99.3
OFFICERS CERTIFICATE PURSUANT TO SECTION 3.16 OF THE RMBS SERVICING AGREEMENT DATED AS OF DECEMBER 21, 2004
AMERICAN HOME MORTGAGE INVESTMENT TRUST 2004-4 MORTGAGE-BACKED NOTES, SERIES 2004-4
	I, Michael Strauss, Chief Executive Officer of American Home Mortgage 	Servicing, Inc., as RMBS Master Servicer, in connection with American 	Home Mortgage Investment Trust 2004-4, Mortgage-Backed Notes, 	Series 2004-4, do hereby certify that:
(i)	a review of the activities of the RMBS Master Servicer during the 	preceding calendar year and of the RMBS Master Servicers performance 	under this Servicing Agreement has been made under my supervision;
(ii)	to the best of my knowledge, based on such review, the RMBS Master 	Servicer has fulfilled all its obligations under this Servicing 	Agreement for such year;
(iii)	a review of the activities of each Subservicer during the 	Subservicers most recently ended calendar year on or prior to 	December 31 of the preceding year and each Subservicers performance 	under its Subservicing Agreement has been made under my supervision; 	and
(iv)	to the best my knowledge, based on my review and the certification 	of an officer of each Subservicer, each Subservicer has performed and 	fulfilled its duties, responsibilities and obligations under this 	Servicing Agreement and its Subservicing Agreement in all material 	respects throughout the year.
Certified on this 29th day of March 2005.
AMERICAN HOME MORTGAGE SERVICING, INC.
By: 	/s/ Michael Strauss Name: 	 Michael Strauss Title: Chief Executive Officer
OFFICERS CERTIFICATE PURSUANT TO SECTION 3.16 OF THE HELOC SUBSERVICING AGREEMENT DATED AS OF DECEMBER 21, 2004
AMERICAN HOME MORTGAGE INVESTMENT TRUST 2004-4 MORTGAGE-BACKED NOTES, SERIES 2004-4
	I, Michael Strauss, Chief Executive Officer of American Home 	Mortgage Servicing, Inc., as HELOC Subservicer, in connection 	with American Home Mortgage Investment Trust 2004-4, 	Mortgage-Backed Notes, Series 2004-4, do hereby certify that:
(i)	a review of the activities of the HELOC Subservicer during the 	preceding calendar year and of HELOC Subservicers performance 	under the HELOC Subservicing Agreement has been made under my 	supervision;
(ii)	to the best of my knowledge, based on such review, the HELOC 	Subservicer has fulfilled all its obligations under the HELOC 	Subservicing Agreement for such year;
(iii)	a review of the activities of each Subservicer during the 	Subservicers most recently ended calendar year on or prior to 	December 31 of the preceding year and each Subservicers 	performance under its Subservicing Agreement has been made under 	my supervision; and
(iv)	to the best my knowledge, based on my review and the certification 	of an officer of each Subservicer, each Subservicer has performed 	and fulfilled its duties, responsibilities and obligations under the 	HELOC Subservicing Agreement and its Subservicing Agreement in all 	material respects throughout the year.
Certified on this 29th day of March 2005.
AMERICAN HOME MORTGAGE SERVICING, INC.
By: 	/s/ Michael Strauss Name: 	 Michael Strauss Title: Chief Executive Officer
Ex-99.4 Schedule of Year-To-Date Principal and Interest Distributions to Certificateholders
A