VBA and Bookmarks

[Formd]

Hello everyone,
I am not a pro with vba so I hope I word this correct.
I am using vba in Word 2016 to merge a document. In my legal style of the document, the combined defendants sometimes has "as his/her spouse" at the end of the 2nd defendant's name. I insert a bookmark at the beginning of the legal style and another at the end of the style to search for the words "as his/her spouse. And, if found place it in other areas of the document. This done with additional bookmarks. Below is the vba code I tried using. Problem is that, it inserts as his/her spouse even if it is not found between the bookmarks. What am I doing wrong?


Legal Style Example

The Lending Institution



Plaintiff

vs.

{Style1}John doe, Jane doe as his/her spouse, Mary Jane,
Jack Spratt, ABC Company, The Home Owners Association,
Unknown tenants, Unknown Spouse.{Style2}

Defendant

This is the code I used

Sub SelectTextBetweenBookmarks()
Dim mark As Range
 Set mark = ActiveDocument.Range
 mark.Start = mark.Bookmarks("Style1").Range.End
 mark.End = mark.Bookmarks("Style2").Range.Start
 mark.Select
Selection.Find.ClearFormatting
    With Selection.Find
        .Text = "as his/her spouse"
        .Replacement.Text = ""
        .Forward = True
        .Wrap = wdFindContinue
        .Format = False
        .MatchCase = False
        .MatchWholeWord = False
        .MatchWildcards = False
        .MatchSoundsLike = False
        .MatchAllWordForms = False
    End With
    Selection.Find.Execute
    Selection.Copy
    Selection.GoTo What:=wdGoToBookmark, Name:="Spouse1"
    With ActiveDocument.Bookmarks
        .DefaultSorting = wdSortByLocation
        .ShowHidden = True
    End With
    Selection.PasteAndFormat (wdFormatOriginalFormatting)
    Selection.GoTo What:=wdGoToBookmark, Name:="Spouse2"
    With ActiveDocument.Bookmarks
        .DefaultSorting = wdSortByLocation
        .ShowHidden = True
    End With
    Selection.PasteAndFormat (wdFormatOriginalFormatting)
End Sub

Thanks in advance for your assistance.