<SEC-DOCUMENT>0001209191-16-154168.txt : 20161208
<SEC-HEADER>0001209191-16-154168.hdr.sgml : 20161208
<ACCEPTANCE-DATETIME>20161208164137
ACCESSION NUMBER:		0001209191-16-154168
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20161207
FILED AS OF DATE:		20161208
DATE AS OF CHANGE:		20161208

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			STONEGATE MORTGAGE CORP
		CENTRAL INDEX KEY:			0001454389
		STANDARD INDUSTRIAL CLASSIFICATION:	MORTGAGE BANKERS & LOAN CORRESPONDENTS [6162]
		IRS NUMBER:				341194858
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9190 PRIORITY WAY WEST DRIVE
		STREET 2:		SUITE 300
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240
		BUSINESS PHONE:		317-663-5100

	MAIL ADDRESS:	
		STREET 1:		9190 PRIORITY WAY WEST DRIVE
		STREET 2:		SUITE 300
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46240

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			AMERICAN FINANCIAL GROUP INC
		CENTRAL INDEX KEY:			0001042046
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36116
		FILM NUMBER:		162041891

	BUSINESS ADDRESS:	
		STREET 1:		GREAT AMERICAN INSURANCE GROUP TOWER
		STREET 2:		301 E. 4TH STREET
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45202
		BUSINESS PHONE:		5135792121

	MAIL ADDRESS:	
		STREET 1:		GREAT AMERICAN INSURANCE GROUP TOWER
		STREET 2:		301 E. 4TH STREET
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45202

	FORMER NAME:	
		FORMER CONFORMED NAME:	AMERICAN FINANCIAL GROUP HOLDINGS INC
		DATE OF NAME CHANGE:	19970709
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-12-07</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001454389</issuerCik>
        <issuerName>STONEGATE MORTGAGE CORP</issuerName>
        <issuerTradingSymbol>SGM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001042046</rptOwnerCik>
            <rptOwnerName>AMERICAN FINANCIAL GROUP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>301 E. FOURTH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CINCINNATI</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>45202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-12-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2572111</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Owned Through Subsidiaries</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>American Financial Group, Inc.
By:  Mark A. Weiss, Vice President</signatureName>
        <signatureDate>2016-12-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
