Here you go... copy and paste into Notepad and save as LacerteSignInAlwaysOnTop.ahk or whatever name you prefer. You'll need AutoHotkey to run it. Download link here: AutoHotkey

Here's a direct link if you prefer: https://file.io/78xLcWhiRfTK

Very useful scripting language, you can automate a lot with it. 😄

Let me know if you have any issues.

#Persistent

SetTimer, LacerteSignInAlwaysOnTop

LacerteSignInAlwaysOnTopHWNDs := {}
LacerteSignInAlwaysOnTop() {
  global LacerteSignInAlwaysOnTopHWNDs
  SetTitleMatchMode, RegEx
  WinGet, HWNDs, List, Sign In ahk_exe i)(w\d{2}tax\.exe|AccountServer\.exe)
  Loop %HWNDs% {
    HWND := HWNDs%A_Index%
    if (HWND and !LacerteSignInAlwaysOnTopHWNDs.HasKey(HWND)) {
      WinActivate, ahk_id %HWND%
      WinSet, AlwaysOnTop, On, ahk_id %HWND%
      LacerteSignInAlwaysOnTopHWNDs[HWND] := true
    }
  }
}