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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019d016a-96f2-79eb-882f-908a0bf377fe,g:cf094e1a-6b14-4720-a1dc-e49d2ae2c58a-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.earnreit.com/role/Cover" xlink:type="simple" xlink:href="earn-20260519.xsd#Cover"/>
  <link:presentationLink xlink:role="http://www.earnreit.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019d016a-96f2-70b2-a6bc-a5b39ba38737" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_DocumentType_019d016a-96f2-70b2-a6bc-a5b39ba38737" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019d016a-96f2-723c-a898-1fbd1e103ceb" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_DocumentPeriodEndDate_019d016a-96f2-723c-a898-1fbd1e103ceb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019d016a-96f2-7628-b3ca-d329d1cc94b3" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityRegistrantName_019d016a-96f2-7628-b3ca-d329d1cc94b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019d016a-96f2-71d7-8ea6-052e5931c2b7" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019d016a-96f2-71d7-8ea6-052e5931c2b7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019d016a-96f2-7cda-a4e6-104bb9df7277" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityFileNumber_019d016a-96f2-7cda-a4e6-104bb9df7277" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019d016a-96f2-7661-aff8-3763b919e39d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityTaxIdentificationNumber_019d016a-96f2-7661-aff8-3763b919e39d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019d016a-96f2-7340-b55c-6eef297619cf" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityAddressAddressLine1_019d016a-96f2-7340-b55c-6eef297619cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019d016a-96f2-7fae-85d4-c4d55d857b3d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityAddressCityOrTown_019d016a-96f2-7fae-85d4-c4d55d857b3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019d016a-96f2-784d-bcd3-3f9e635e9372" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityAddressStateOrProvince_019d016a-96f2-784d-bcd3-3f9e635e9372" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019d016a-96f2-79c2-abab-de25663f2f1b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityAddressPostalZipCode_019d016a-96f2-79c2-abab-de25663f2f1b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019d016a-96f2-7afb-975d-2923230f93d3" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_CityAreaCode_019d016a-96f2-7afb-975d-2923230f93d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019d016a-96f2-72d9-99bf-5193a96bc25e" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_LocalPhoneNumber_019d016a-96f2-72d9-99bf-5193a96bc25e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019d016a-96f2-7ab7-9813-f66a8498518d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_WrittenCommunications_019d016a-96f2-7ab7-9813-f66a8498518d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019d016a-96f2-7ade-bcde-23d8d3d69882" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_SolicitingMaterial_019d016a-96f2-7ade-bcde-23d8d3d69882" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019d016a-96f2-7822-8a89-4ca02e58218b" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_PreCommencementTenderOffer_019d016a-96f2-7822-8a89-4ca02e58218b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019d016a-96f2-73cb-b0d2-75cc27aa3a6a" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019d016a-96f2-73cb-b0d2-75cc27aa3a6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019d016a-96f2-7267-a4e9-36098be5968c" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_Security12bTitle_019d016a-96f2-7267-a4e9-36098be5968c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019d016a-96f2-78ed-88de-9949fe272caf" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_TradingSymbol_019d016a-96f2-78ed-88de-9949fe272caf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019d016a-96f2-79ea-b703-5e8260293890" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_SecurityExchangeName_019d016a-96f2-79ea-b703-5e8260293890" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019d016a-96f2-7065-b253-f323c2cc58eb" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityEmergingGrowthCompany_019d016a-96f2-7065-b253-f323c2cc58eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019d016a-96f2-7a3d-93ee-6ce15beb66b9" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_EntityCentralIndexKey_019d016a-96f2-7a3d-93ee-6ce15beb66b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019d016a-96f2-7bab-a2b8-6a4e93b6d586" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_AmendmentFlag_019d016a-96f2-7bab-a2b8-6a4e93b6d586" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019e4063-7930-77d1-a40c-e5b4cc52ba31" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationTable"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_019d016a-96f2-746e-8a10-24acd0e6c58c" xlink:to="loc_dei_DocumentInformationTable_019e4063-7930-77d1-a40c-e5b4cc52ba31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_019e4063-7930-7289-95ff-9fcbe54c8a66" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_019e4063-7930-77d1-a40c-e5b4cc52ba31" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_019e4063-7930-7289-95ff-9fcbe54c8a66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_019e4063-7930-7837-8a7b-37d0916c72fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_019e4063-7930-7289-95ff-9fcbe54c8a66" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_019e4063-7930-7837-8a7b-37d0916c72fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorSubordinatedNotesMember_019e4063-7930-7d8f-93fd-f721f42d773f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SeniorSubordinatedNotesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_019e4063-7930-7837-8a7b-37d0916c72fa" xlink:to="loc_us-gaap_SeniorSubordinatedNotesMember_019e4063-7930-7d8f-93fd-f721f42d773f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019e4063-7930-7a20-bfa2-cad0b1505fe5" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentInformationLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationTable_019e4063-7930-77d1-a40c-e5b4cc52ba31" xlink:to="loc_dei_DocumentInformationLineItems_019e4063-7930-7a20-bfa2-cad0b1505fe5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e4063-7930-7ded-adad-ced08b00c519" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019e4063-7930-7a20-bfa2-cad0b1505fe5" xlink:to="loc_dei_Security12bTitle_019e4063-7930-7ded-adad-ced08b00c519" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e4063-7930-79e0-9c01-1536a32b280d" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019e4063-7930-7a20-bfa2-cad0b1505fe5" xlink:to="loc_dei_TradingSymbol_019e4063-7930-79e0-9c01-1536a32b280d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e4063-7930-78ed-b891-14599ce502ae" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_DocumentInformationLineItems_019e4063-7930-7a20-bfa2-cad0b1505fe5" xlink:to="loc_dei_SecurityExchangeName_019e4063-7930-78ed-b891-14599ce502ae" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
