<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2022 Workiva-->
<!--r:8c5b008a-bfdf-49ff-b40d-48b07c6be420,g:16bb0915-9551-43b7-9dbc-bf6cd95674bf-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:msof="http://www.vectorgroupltdcik0000766404.com/20220731" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2020-01-21" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.vectorgroupltdcik0000766404.com/20220731">
  <xs:import namespace="http://fasb.org/us-gaap/2022" schemaLocation="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd"/>
  <xs:import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.xbrl.org/2003/xlink-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
  <xs:import namespace="http://www.xbrl.org/dtr/type/2020-01-21" schemaLocation="https://www.xbrl.org/dtr/type/2020-01-21/types.xsd"/>
  <xs:import namespace="http://xbrl.sec.gov/dei/2022" schemaLocation="https://xbrl.sec.gov/dei/2022/dei-2022.xsd"/>
  <xs:annotation>
    <xs:appinfo>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="msof-20220731_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="msof-20220731_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="msof-20220731_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple"/>
      <link:linkbaseRef xmlns:xlink="http://www.w3.org/1999/xlink" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="msof-20220731_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple"/>
      <link:roleType id="Cover" roleURI="http://www.vectorgroupltdcik0000766404.com/role/Cover">
        <link:definition>0001001 - Document - Cover</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedBalanceSheets" roleURI="http://www.vectorgroupltdcik0000766404.com/role/CondensedBalanceSheets">
        <link:definition>1001002 - Statement - Condensed Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedBalanceSheetsParenthetical" roleURI="http://www.vectorgroupltdcik0000766404.com/role/CondensedBalanceSheetsParenthetical">
        <link:definition>1002003 - Statement - Condensed Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedStatementsofOperations" roleURI="http://www.vectorgroupltdcik0000766404.com/role/CondensedStatementsofOperations">
        <link:definition>1003004 - Statement - Condensed Statements of Operations</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedStatementsofShareholdersDeficiency" roleURI="http://www.vectorgroupltdcik0000766404.com/role/CondensedStatementsofShareholdersDeficiency">
        <link:definition>1004005 - Statement - Condensed Statements of Shareholders' Deficiency</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedStatementsofCashFlows" roleURI="http://www.vectorgroupltdcik0000766404.com/role/CondensedStatementsofCashFlows">
        <link:definition>1005006 - Statement - Condensed Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATION" roleURI="http://www.vectorgroupltdcik0000766404.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATION">
        <link:definition>2101101 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ORGANIZATION</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATIONPolicies" roleURI="http://www.vectorgroupltdcik0000766404.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATIONPolicies">
        <link:definition>2202201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ORGANIZATION (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATIONDetails" roleURI="http://www.vectorgroupltdcik0000766404.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESANDORGANIZATIONDetails">
        <link:definition>2403401 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND ORGANIZATION (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DUETOSHAREHOLDER" roleURI="http://www.vectorgroupltdcik0000766404.com/role/DUETOSHAREHOLDER">
        <link:definition>2104102 - Disclosure - DUE TO SHAREHOLDER</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DUETOSHAREHOLDERDetails" roleURI="http://www.vectorgroupltdcik0000766404.com/role/DUETOSHAREHOLDERDetails">
        <link:definition>2405402 - Disclosure - DUE TO SHAREHOLDER (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xs:appinfo>
  </xs:annotation>
  <xs:element id="msof_DueToShareholderTextBlock" abstract="false" name="DueToShareholderTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="msof_RelatedPartyTransactionLineOfCreditFacilityProvidedByShareholderOutstandingAmount" abstract="false" name="RelatedPartyTransactionLineOfCreditFacilityProvidedByShareholderOutstandingAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msof_LenderMajorityShareholderMember" abstract="true" name="LenderMajorityShareholderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msof_RelatedPartyTransactionLineOfCreditFacilityProvidedByShareholderMaximumBorrowing" abstract="false" name="RelatedPartyTransactionLineOfCreditFacilityProvidedByShareholderMaximumBorrowing" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msof_RelatedPartyTransactionLineOfCreditFacilityAccruedInterest" abstract="false" name="RelatedPartyTransactionLineOfCreditFacilityAccruedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
