WIP

API/ROLAC.API/Entities/Check.cs

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+using ROLAC.API.Entities.Base;
+namespace ROLAC.API.Entities;
+
+/// <summary>
+/// A disbursement check issued to a single payee, bundling one or more approved
+/// expenses (its <see cref="Lines"/>). The payee name/address are snapshotted at
+/// issue time so the printed check is reproducible even if member data later changes.
+/// </summary>
+public class Check : SoftDeleteEntity
+{
+    public int      Id          { get; set; }
+    public string   CheckNumber { get; set; } = null!;
+    public DateOnly CheckDate   { get; set; }
+    public decimal  Amount      { get; set; }            // sum of line amounts
+
+    public string   PayeeType   { get; set; } = "Vendor"; // Vendor | Member
+    public int?     MemberId    { get; set; }            // set when PayeeType == Member
+    public string   PayeeName   { get; set; } = null!;    // snapshot
+    public string?  PayeeAddress { get; set; }           // snapshot
+    public string?  PayeeCity   { get; set; }
+    public string?  PayeeState  { get; set; }
+    public string?  PayeeZip    { get; set; }
+
+    public string   Status      { get; set; } = "Issued"; // Issued | Voided
+    public string?  Memo        { get; set; }
+
+    public string   IssuedBy    { get; set; } = null!;
+    public DateTimeOffset IssuedAt { get; set; }
+
+    public string?  VoidReason  { get; set; }
+    public DateTimeOffset? VoidedAt { get; set; }
+    public string?  VoidedBy    { get; set; }
+
+    // Receipt e-signature: payee signs in-app on hand-off. "Signed" is derived as
+    // ReceiptSignedAt != null.
+    public string?  ReceiptSignatureBlobPath { get; set; }
+    public string?  ReceiptSignedName        { get; set; }
+    public DateTimeOffset? ReceiptSignedAt    { get; set; }
+    public string?  ReceiptCapturedBy        { get; set; }
+
+    public Member?           Member { get; set; }
+    public ICollection<CheckLine> Lines { get; set; } = [];
+}

API/ROLAC.API/Entities/CheckLine.cs

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+using ROLAC.API.Entities.Base;
+namespace ROLAC.API.Entities;
+
+/// <summary>
+/// One expense covered by a <see cref="Check"/>. Amount/Description are snapshotted
+/// at issue time for the printed ledger stub; ExpenseId links back to the source expense.
+/// </summary>
+public class CheckLine : AuditableEntity
+{
+    public int     Id          { get; set; }
+    public int     CheckId     { get; set; }
+    public int     ExpenseId   { get; set; }
+    public decimal Amount      { get; set; }            // snapshot of expense amount
+    public string  Description { get; set; } = null!;   // snapshot of expense description
+
+    public Check?   Check   { get; set; }
+    public Expense? Expense { get; set; }
+}

API/ROLAC.API/Entities/ChurchProfile.cs

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+using ROLAC.API.Entities.Base;
+namespace ROLAC.API.Entities;
+
+/// <summary>
+/// Singleton (Id == 1) holding the issuing church's identity, bank details, and the
+/// running check-number counter used when disbursing checks. Seeded on startup.
+/// </summary>
+public class ChurchProfile : AuditableEntity
+{
+    public int     Id                { get; set; }
+    public string  Name              { get; set; } = null!;
+    public string? Address           { get; set; }
+    public string? City              { get; set; }
+    public string? State             { get; set; }
+    public string? ZipCode           { get; set; }
+    public string? BankName          { get; set; }
+    public string? BankAccountNumber { get; set; }
+    public string? BankRoutingNumber { get; set; }
+
+    /// <summary>Next check number to allocate; consumed (++) when a check is issued.</summary>
+    public int     NextCheckNumber   { get; set; } = 1001;
+
+    // Npgsql system column used as an optimistic-concurrency token so two simultaneous
+    // disbursement runs can't allocate the same check number. Mapped via IsRowVersion().
+    public uint    xmin              { get; set; }
+}