10-D 1 gmc06c01_10d-200603.txt UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 10-D ASSET-BACKED ISSUER DISTRIBUTION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the monthly distribution period from: February 11, 2006 to March 10, 2006 Commission File Number of issuing entity: 333-123974-02 GMAC Commercial Mortgage Securities, Inc. Series 2006-C1 (Exact name of issuing entity as specified in its charter) Commission File Number of depositor:333-123974 GMAC Commercial Mortgage Securities, Inc. (Exact name of depositor as specified in its charter) GMAC Commercial Mortgage Corporation (Exact name of sponsor as specified in its charter) New York (State or other jurisdiction of incorporation or organization of the issuing entity) 54-2193487 54-2193488 54-2193489 54-2193490 54-6696479 (I.R.S. Employer Identification No.) c/o Wells Fargo Bank, N.A. 9062 Old Annapolis Road Columbia, MD 21045 (Address of principal executive offices of the issuing entity) (Zip Code) (410) 884-2000 (Telephone number, including area code) Not Applicable (Former name, former address, if changed since last report) Registered/reporting pursuant to (check one) Title of Section Section Section Name of Exchange Class 12(b) 12(g) 15(d) (If Section 12(b)) ~~GMAC COMMERCIAL MORTGAGE ______ ______ ___X___ _____________ SECURITIES, INC. Mortgage Pass-Through Certificates Series 2006-C1~~

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes __X__ No ____ Part I - DISTRIBUTION INFORMATION Item 1. Distribution and Pool Performance Information On March 10, 2006 a distribution was made to holders of GMAC COMMERCIAL MORTGAGE SECURITIES, INC., Series 2006-C1. The distribution report is attached as an Exhibit to this Form 10-D, please see Item 9(b), Exhibit 99.1 for the related information. Part II - OTHER INFORMATION Item 9. Exhibits. (a) The following is a list of documents filed as part of this Report on Form 10-D: (99.1) Monthly report distributed to holders of GMAC Commercial Mortgage Securities, Inc. Series 2006-C1, relating to the March 10, 2006 distribution. (b) The exhibits required to be filed by Registrant pursuant to Item 601 of Regulation S-K are listed above and in the Exhibit Index that immediately follows the signature page hereof. SIGNATURES Pursuant to the requirements 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. GMAC Commercial Mortgage Securities, Inc. (Depositor) /s/Victor Diaso Victor Diaso, Vice President Date: March 20, 2006 EXHIBIT INDEX Exhibit Number Description EX-99.1 Monthly report distributed to holders of GMAC Commercial Mortgage Securities, Inc. Series 2006-C1, relating to the March 10, 2006 distribution. EX-99.1 Wells Fargo Bank, N.A. Corporate Trust Services 9062 Old Annapolis Road Columbia, MD 21045-1951 Determination Date: 03/01/2006 GMAC COMMERCIAL MORTGAGE SECURITIES, INC., Mortgage Pass-Through Certificates, Series 2006-C01 For Additional Information, please contact CTSLink Customer Service (301)815-6600 Reports Available on the World Wide Web @ www.ctslink.com/cmbs Payment Date: 03/10/2006 Record Date: 02/28/2006 DISTRIBUTION DATE STATEMENT Table of Contents STATEMENT SECTIONS PAGE(s) Certificate Distribution Detail 2 Certificate Factor Detail 3 Reconciliation Detail 4 Other Required Information 5 Cash Reconciliation 6 Ratings Detail 7 Current Mortgage Loan and Property Stratification Tables 8 - 16 Mortgage Loan Detail 17 - 20 Principal Prepayment Detail 21 Historical Detail 22 Delinquency Loan Detail 23 - 26 Specially Serviced Loan Detail 27 - 28 Modified Loan Detail 29 Liquidated Loan Detail 30 Bond / Collateral Realized Loss Reconciliation 31 Supplemental Reporting 32 Depositor GMAC Commercial Mortgage Securities, Inc. 200 Witmer Road Horsham, PA 19044 Contact: Karen Repeckyj Phone Number: (215) 328-1259 Master Servicer GMAC Commercial Mortgage Corporation 550 California Street, 12th Floor San Francisco, CA 94104 Contact: Henry Bieber Phone Number: (415) 835-9200 Special Servicer CWCapital Asset Management LLC. 1919 Pennsylvania Avenue, NW Suite 400 Washington, DC 20006-3434 Contact: Kathleen Olin Phone Number: (202) 973-6375 This report has been compiled from information provided to Wells Fargo Bank, N.A. by various third parties, which may include the Servicer, Master Servicer, Special Servicer and others. Wells Fargo Bank, N.A. has not independently confirmed the accuracy of information received from these third parties and assumes no duty to do so. Wells Fargo Bank, N.A. expressly disclaims any responsibility for the accuracy or completeness of information furnished by third parties. Copyright 2006, Wells Fargo Bank, N.A.

Appraisal Reduction Amount None Cash Reconciliation Detail Total Funds Collected Interest: Scheduled Interest 7,255,051.30 Interest reductions due to Nonrecoverability Determinations 0.00 Interest Adjustments 0.00 Deferred Interest 0.00 Net Prepayment Interest Shortfall 0.00 Net Prepayment Interest Excess 0.00 Extension Interest 0.00 Interest Reserve Withdrawal 499,695.32 Total Interest Collected 7,754,746.62 Principal: Scheduled Principal 644,837.09 Unscheduled Principal 0.00 Principal Prepayments 0.00 Collection of Principal after Maturity Date 0.00 Recoveries from Liquidation and Insurance Proceeds 0.00 Excess of Prior Principal Amounts paid 0.00 Curtailments 0.00 Negative Amortization 0.00 Principal Adjustments 0.00 Total Principal Collected 644,837.09 Other: Prepayment Penalties/Yield Maintenance 0.00 Repayment Fees 0.00 Borrower Option Extension Fees 0.00 Equity Payments Received 0.00 Net Swap Counterparty Payments Received 0.00 Total Other Collected: 0.00 Total Funds Collected 8,399,583.71 Total Funds Distributed Fees: Master Servicing Fee 64,527.31 Trustee Fee 1,387.90 Certificate Administration Fee 0.00 Insurer Fee 0.00 Miscellaneous Fee 0.00 Total Fees 65,915.22 Additional Trust Fund Expenses: Reimbursement for Interest on Advances 0.00 ASER Amount 0.00 Special Servicing Fee 0.00 Rating Agency Expenses 0.00 Attorney Fees & Expenses 0.00 Bankruptcy Expense 0.00 Taxes Imposed on Trust Fund 0.00 Non-Recoverable Advances 0.00 Other Expenses 0.00 Total Additional Trust Fund Expenses 0.00 Interest Reserve Deposit 0.00 Payments to Certificateholders & Others: Interest Distribution 7,688,835.12 Principal Distribution 644,837.09 Prepayment Penalties/Yield Maintenance 0.00 Borrower Option Extension Fees 0.00 Equity Payments Paid 0.00 Net Swap Counterparty Payments Paid 0.00 Total Payments to Certificateholders & Others 8,333,672.21 Total Funds Distributed 8,399,587.43

Principal Prepayment Detail No Principal Prepayments this Period

Specially Serviced Loan Detail - Part 1 No Specially Serviced Loans this Period Specially Serviced Loan Detail - Part 2 No Specially Serviced Loans this Period Modified Loan Detail No Modified Loans Liquidated Loan Detail No Liquidated Loans this Period Bond/Collateral Realized Loss Reconciliation No Realized Losses this Period

GMAC Commercial Mortgage Securities, Inc. Series 2006-C1 Trust 10-D