directors of TypTap, sell to any third party or group of related third-parties, in a single transaction or series of related transactions, a number shares of TypTap common stock that would require the filing of a “Form A” notification (or equivalent form) with any state insurance regulatory authority. A “Form A” (or equivalent form) is generally be required for any direct or indirect change of ownership of 10% or more of a regulated insurance company. We further anticipate that, in replacement of the preferred stock redemption rights currently held by Centerbridge that will terminate upon the conversion of the preferred stock held by Centerbridge, HCI and Centerbridge may enter into a share liquidity agreement under which HCI will grant Centerbridge a right to sell its shares of TypTap common stock to HCI after the completion of this offering under agreed-upon terms.
Reinsurance Contracts
We participate in reinsurance contracts with two of our affiliates, Homeowner’s Choice Property & Casualty Insurance Company, Inc. and Claddaugh Casualty Insurance Company Ltd., two other subsidiaries of our parent company, HCI. The reinsurance allocation method is governed by HCI’s reinsurance allocation agreement, which states that each cedant’s retention and reinsurer’s limit of liability for a loss occurrence is apportioned based on the amount of loss contributed to that occurrence. The reinsurance allocation agreement also states that the reinsurance premium shall be apportioned to each company in the same proportion that the companies’ premium subject to the reinsurance agreement bears to the total premium subject to the reinsurance agreement. Our reinsurance premiums during the years ended December 31, 2020, 2019 and 2018 were $28.8 million, $11.1 million and $4.2 million, respectively.
Cost Allocation Agreement
We receive cost allocations from HCI under a corporate overhead cost allocation agreement between HCI and its subsidiaries, including us (the “HCI Cost Allocation Agreement”), for certain overhead costs incurred by HCI that are related to operating the business as a group. Such costs may include, but are not limited to, corporate administrative expenses, salaries, benefits, bonus and other expenses related to human resources services, accounting and legal services and other indirect operational costs. On a monthly basis, these costs are allocated to us on a predetermined overhead rate which is annually determined by considering headcounts, revenues and activities that can influence costs. The expenses allocated to us under the HCI Cost Allocation Agreement during the years ended December 31, 2020, 2019 and 2018 were approximately $3,625,000, $3,389,000 and $2,261,000, respectively, and during the nine months ended September 30, 2021 and 2020 were approximately $3,523,000 and $3,095,000, respectively. We anticipate that the HCI Cost Allocation Agreement will terminate upon the completion of this offering.
Agent Commission Agreement
Under an agent commission agreement with Omega Insurance Agency, Inc., a subsidiary of HCI, we pay commissions on premiums received in cash for policies issued during the term of the agreement. For the years ended December 31, 2020, 2019 and 2018, commission expenses were approximately $108,000, $84,000 and $44,000, respectively, and for the nine months ended September 30, 2021 and 2020, commission expenses were approximately $88,000 and $78,000, respectively.
Real Property Leases
During 2020 and 2019, we leased office space in Tampa from HCI, and in February 2021, we entered into a sublease agreement with HCI for such office space. For the years ended December 31, 2020, 2019 and 2018, lease expenses related to these leases were $225,000, $222,000 and $219,000, respectively, and for the nine months ended September 30, 2021 and 2020, such lease expense were $170,000 and $168,000, respectively.
We also have an existing lease with Silver Springs Property Investments, LLC, an HCI subsidiary, for an office building in Ocala, Florida. For the years ended December 31, 2020, 2019 and 2018, lease expenses related to these leases were $199,000, $200,000 and $0, respectively, and for the nine months ended September 30, 2021 and 2020, such lease expenses were $150,000.
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