D2-Natixis Multifamily Mortgage Trust 2026-M1 Sample Contracts

MORTGAGE LOAN PURCHASE AGREEMENT
Mortgage Loan Purchase Agreement • August 17th, 2026 • D2-Natixis Multifamily Mortgage Trust 2026-M1 • Asset-backed securities

This Mortgage Loan Purchase Agreement (this “Agreement”) is dated and effective as of August 13, 2026, between Natixis Real Estate Capital LLC, as seller (in such capacity, together with its successors and permitted assigns hereunder, the “Mortgage Loan Seller” or “Seller”), and Natixis Commercial Mortgage Securities LLC, as purchaser (in such capacity, together with its successors and permitted assigns hereunder, the “Purchaser”).

D2-Natixis Multifamily Mortgage Trust 2026-M1 COMMERCIAL MORTGAGE PASS-THROUGH CERTIFICATES, SERIES 2026-M1 UNDERWRITING AGREEMENT As of August 13, 2026
Underwriting Agreement • August 17th, 2026 • D2-Natixis Multifamily Mortgage Trust 2026-M1 • Asset-backed securities • New York

Natixis Commercial Mortgage Securities LLC, a Delaware limited liability company (the “Depositor”), intends to issue its D2-Natixis Multifamily Mortgage Trust 2026-M1, Commercial Mortgage Pass-Through Certificates, Series 2026-M1 (the “Certificates”), in twelve (12) classes (each, a “Class”) as designated in the Prospectus (as defined below). Pursuant to this underwriting agreement (the “Agreement”), the Depositor further proposes to sell to Natixis Securities Americas LLC, Barclays Capital Inc., BMO Capital Markets Corp. and Wells Fargo Securities, LLC, as underwriters (collectively, in such capacities, the “Underwriters”), the Certificates set forth in Schedule I hereto (the “Registered Certificates”) in the respective original principal amounts and notional amounts set forth in Schedule I. The Certificates represent in the aggregate the entire beneficial ownership interest in a trust fund (the “Trust Fund”) primarily consisting of a segregated pool (the “Mortgage Pool”) of twenty (2