При таком LINQ запросе

var jobData = (from cj in dc.ClientJob
    where cj.Id == jobId
    from q in dc.Quote
    where q.ClientJob_id == cj.Id
    from qd in dc.QuoteDocument
    where qd.Quote_id == q.Id
    let Client = dc.CustomerBase.FirstOrDefault(_ => _.Id == cj.Client_id)
    let QuoteDocument = dc.StoredFile.FirstOrDefault(_ => _.Id == qd.File_id)
    let QuoteBid = dc.QuoteBid.FirstOrDefault(_ => _.Quote_id == q.Id)
    select new
        {
            FabricatorId = QuoteBid.Fabricator_id,
            ClientName = Client.Name,
            ClientPhone = Client.Phone,
            QuoteDocumentProviderRelativePath = QuoteDocument.ProviderRelativePath
    }).SingleOrDefault();

Создается такой запрос

declare @jobId int  = 10
SELECT TOP (2)
    [t2].[Fabricator_id] as [Fabricator_id1],
    [t2].[c1] as [c11],
    [t4].[Name] as [Name1],
    [t4].[Phone] as [Phone1],
    [t6].[ProviderRelativePath] as [ProviderRelativePath1]
FROM
    [dbo].[ClientJob] [t7]
        OUTER APPLY (
            SELECT TOP (1)
                [t1].[Fabricator_id],
                1 as [c1]
            FROM
                [dbo].[QuoteBid] [t1]
            WHERE
                [t1].[Quote_id] = [t8].[Id]
        ) [t2]
        OUTER APPLY (
            SELECT TOP (1)
                [t3].[Name],
                1 as [c2],
                [t3].[Phone]
            FROM
                [dbo].[CustomerBase] [t3]
            WHERE
                [t3].[Id] = [t7].[Client_id]
        ) [t4]
        OUTER APPLY (
            SELECT TOP (1)
                [t5].[ProviderRelativePath],
                1 as [c3]
            FROM
                [dbo].[StoredFile] [t5]
            WHERE
                [t5].[Id] = [t9].[File_id]
        ) [t6],
    [dbo].[Quote] [t8],
    [dbo].[QuoteDocument] [t9]
WHERE
    [t7].[Id] = @jobId AND [t8].[ClientJob_id] = [t7].[Id] AND
    [t9].[Quote_id] = [t8].[Id]

В котором такая ошибка

Msg 4104, Level 16, State 1, Line 21
The multi-part identifier "t8.Id" could not be bound.
Msg 4104, Level 16, State 1, Line 40
The multi-part identifier "t9.File_id" could not be bound.