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

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2023 Workiva-->
<!--r:b261f1dd-cd2d-46e6-a3df-16c05cef26fe,g:54503af5-d1a6-4d65-84a3-bfa742e7c44e-->
<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://pwp.com/role/DocumentandEntityInformationDocument" xlink:type="simple" xlink:href="pwp-20230306.xsd#DocumentandEntityInformationDocument"/>
  <link:presentationLink xlink:role="http://pwp.com/role/DocumentandEntityInformationDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_3e6608e3-1e4d-40c3-947a-96d7ac92aeff" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_DocumentType_3e6608e3-1e4d-40c3-947a-96d7ac92aeff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_d43dfc2d-62cc-44a0-91b2-bebcf2c57252" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_DocumentPeriodEndDate_d43dfc2d-62cc-44a0-91b2-bebcf2c57252" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_297516e5-b9ef-4fc3-96e7-a87d7fd58425" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityFileNumber_297516e5-b9ef-4fc3-96e7-a87d7fd58425" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_0b298d54-54a0-4015-985a-985f2c49a40e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityRegistrantName_0b298d54-54a0-4015-985a-985f2c49a40e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_1f1b3e99-f24b-49e6-a31d-01f42c82192d" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityIncorporationStateCountryCode_1f1b3e99-f24b-49e6-a31d-01f42c82192d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_5ae6db03-64c0-42cc-b7fd-a1b3689f7b6b" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityTaxIdentificationNumber_5ae6db03-64c0-42cc-b7fd-a1b3689f7b6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_eae2a9fc-63a1-4c42-8590-2a92bcad26f5" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityAddressAddressLine1_eae2a9fc-63a1-4c42-8590-2a92bcad26f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_82e883cc-8e93-49d6-86ff-d4b3de6f850c" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityAddressCityOrTown_82e883cc-8e93-49d6-86ff-d4b3de6f850c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_bd8b9bfd-52d6-4671-a440-520a9efba09e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityAddressStateOrProvince_bd8b9bfd-52d6-4671-a440-520a9efba09e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_23f0b239-0828-4160-867f-7dcf8101a87d" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityAddressPostalZipCode_23f0b239-0828-4160-867f-7dcf8101a87d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_0967d37f-9383-4354-99d3-8ffa38bcd6e4" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_CityAreaCode_0967d37f-9383-4354-99d3-8ffa38bcd6e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_4a677cdc-d847-41ac-a46a-501cb4dfd58c" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_LocalPhoneNumber_4a677cdc-d847-41ac-a46a-501cb4dfd58c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_9843f9b3-9f0e-4192-9156-62bfb4707f01" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_WrittenCommunications"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_WrittenCommunications_9843f9b3-9f0e-4192-9156-62bfb4707f01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_59c98962-3153-4a95-827c-b7b1fef487fb" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SolicitingMaterial"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_SolicitingMaterial_59c98962-3153-4a95-827c-b7b1fef487fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_08f9f89a-6df7-4149-ae66-40ee6c9a9829" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementTenderOffer"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_PreCommencementTenderOffer_08f9f89a-6df7-4149-ae66-40ee6c9a9829" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_7fa996d8-023a-43d9-a4c7-75b812c58a94" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_7fa996d8-023a-43d9-a4c7-75b812c58a94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_782e970d-5c49-46e1-89e6-4fca4362cae6" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_Security12bTitle_782e970d-5c49-46e1-89e6-4fca4362cae6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_89a0ed8b-d6e9-4426-aba5-c3cb33825d3d" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_TradingSymbol_89a0ed8b-d6e9-4426-aba5-c3cb33825d3d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_5fd2dbb8-c996-400e-bc48-d497bc003e6e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_SecurityExchangeName_5fd2dbb8-c996-400e-bc48-d497bc003e6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_ae0d80c0-7c76-4cbc-b740-775111f065b4" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityEmergingGrowthCompany_ae0d80c0-7c76-4cbc-b740-775111f065b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_a57a8083-6266-4512-ab59-232806c9729e" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityExTransitionPeriod"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityExTransitionPeriod_a57a8083-6266-4512-ab59-232806c9729e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_f38912c0-60fd-4f13-bf13-0eba662d68f7" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_EntityCentralIndexKey_f38912c0-60fd-4f13-bf13-0eba662d68f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_a9db2f2e-dea2-4efa-9421-0384567bedaf" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_dei_CoverAbstract_05cbd079-e184-462c-8959-6cdd5fcadeb0" xlink:to="loc_dei_AmendmentFlag_a9db2f2e-dea2-4efa-9421-0384567bedaf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
