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

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2023 Workiva-->
<!--r:dcb9f717-cb38-47e4-8fc8-4fc583cd1d57,g:02f25359-a6fd-4718-ac45-ef79c76264ef-->
<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-20230222.xsd#DocumentandEntityInformationDocument"/>
  <link:presentationLink xlink:role="http://pwp.com/role/DocumentandEntityInformationDocument" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CoverAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_2227f463-5fe5-4331-a927-348c4570284e" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_DocumentType_2227f463-5fe5-4331-a927-348c4570284e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_80ea7533-da95-4e74-a11b-a474256c65c3" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_DocumentPeriodEndDate_80ea7533-da95-4e74-a11b-a474256c65c3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_622e62b4-a9e3-487e-ab55-0f6b9fa5dd58" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityFileNumber_622e62b4-a9e3-487e-ab55-0f6b9fa5dd58" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_689feb43-a015-4f44-a4d2-106a6ba60bc7" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityRegistrantName_689feb43-a015-4f44-a4d2-106a6ba60bc7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_8880ecca-935f-41cd-87bf-c4a96d157d8c" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityIncorporationStateCountryCode_8880ecca-935f-41cd-87bf-c4a96d157d8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_926426e9-ded2-4b96-831c-a5a73eeae8e6" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityTaxIdentificationNumber_926426e9-ded2-4b96-831c-a5a73eeae8e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_0528b9de-a1be-40b7-a3b6-c3f49f68f094" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityAddressAddressLine1_0528b9de-a1be-40b7-a3b6-c3f49f68f094" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_ddf0ce81-76e8-4fd6-8bd6-fc046ee14e76" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityAddressCityOrTown_ddf0ce81-76e8-4fd6-8bd6-fc046ee14e76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_65b54937-5c0a-41ad-ba74-21d4e9882e4f" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityAddressStateOrProvince_65b54937-5c0a-41ad-ba74-21d4e9882e4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_30b79a28-0a7e-464d-96d0-902054a9f51f" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityAddressPostalZipCode_30b79a28-0a7e-464d-96d0-902054a9f51f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_d37ce814-3f4b-4dab-9e8e-07cea8a88815" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_CityAreaCode_d37ce814-3f4b-4dab-9e8e-07cea8a88815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_c815012c-9269-40c6-823e-70d61ba91e42" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_LocalPhoneNumber_c815012c-9269-40c6-823e-70d61ba91e42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_eea2c59c-e418-4bb0-8b29-6c7e8f35d61e" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_WrittenCommunications_eea2c59c-e418-4bb0-8b29-6c7e8f35d61e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_dc6d3897-6460-4763-884d-4880dc39fa1c" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_SolicitingMaterial_dc6d3897-6460-4763-884d-4880dc39fa1c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_4e05dfcb-25f1-43d1-ac73-d6ef08f0101c" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_PreCommencementTenderOffer_4e05dfcb-25f1-43d1-ac73-d6ef08f0101c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_ad29c6e4-1563-4451-909b-d297a2caea72" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_ad29c6e4-1563-4451-909b-d297a2caea72" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_bd557370-3f31-42da-a5c5-2792ae962ab7" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_Security12bTitle_bd557370-3f31-42da-a5c5-2792ae962ab7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_a0981fbe-57c7-4e63-bf2c-dda7a4108a86" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_TradingSymbol_a0981fbe-57c7-4e63-bf2c-dda7a4108a86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_d807ad13-6765-46f7-b974-d6949aa30f4a" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_SecurityExchangeName_d807ad13-6765-46f7-b974-d6949aa30f4a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_58e76514-9fd4-49cf-8702-6f6a30daba98" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityEmergingGrowthCompany_58e76514-9fd4-49cf-8702-6f6a30daba98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityExTransitionPeriod_fb6adb36-9a42-40ee-82dd-3f2f80040106" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityExTransitionPeriod_fb6adb36-9a42-40ee-82dd-3f2f80040106" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_e699d6f1-7f84-4396-8a6f-397035f9f7c0" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_EntityCentralIndexKey_e699d6f1-7f84-4396-8a6f-397035f9f7c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_fe5c87a9-9497-4d71-aae4-58f4316b16b9" 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_3c99ef1b-bd50-405b-a634-31931f857cb8" xlink:to="loc_dei_AmendmentFlag_fe5c87a9-9497-4d71-aae4-58f4316b16b9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
