smart contract for rentdi

contract.sol

//the tenants borrow gho and pays to the pool and the RentalApp contract owner keeps the moneys and earns interest
    function paySecurityDeposit(address tokenAddress) public {
        require(
            tokenAddress == ghoAddress,
            "Only gho token can be used to pay rent"
        );
        require(msg.sender == tenant, "Only tenant can pay security deposit");
        require(leaseActive, "Lease is active");
        require(
            block.timestamp <= leaseStart + securityDepositDueDate,
            "Security Deposit is not late"
        );
        POOL.borrow(ghoAddress, securityDeposit * 10  18, 2, 0, msg.sender);
        // gho.approve(dexContractAddress, securityDeposit * 10  18);
        gho.transfer(owner, securityDeposit * 10  18);
        emit PaidSecurityDeposit(
            owner,
            landlord,
            tenant,
            securityDeposit,
            block.timestamp,
            securityDepositDueDate,
            leasingAgreementId
        );
    }

    //the tenants borrow gho and pays the landlord
    function payMonthlyRent(address tokenAddress) public {
        require(
            tokenAddress == ghoAddress,
            "Only gho token can be used to pay rent (for now)"
        );
        require(msg.sender == tenant, "Only tenant can pay rent");
        require(leaseActive, "Lease is active");
        require(
            block.timestamp <= leaseStart + monthlyDueDate * 3600 * 24,
            "Rent is not late"
        );
        POOL.borrow(ghoAddress, rentAmount * 10  18, 2, 0, msg.sender);
        gho.transfer(landlord, rentAmount * 10 ** 18);
        emit PaidMonthlyRent(
            landlord,
            tenant,
            securityDeposit,
            block.timestamp,
            leasingAgreementId
        );
    }

    modifier onlyOwner() {
        require(
            msg.sender == owner,
            "Only the contract owner can call this function"
        );
        _;
    }

    receive() external payable {}
}