You missed some quotes.

DoCmd.OpenForm "FamilyListF", , , "ProvinceState="""Qc""""

I tried your quote settings and i save it but i get the same error. THANKS ANYWAY.

DoCmd.OpenForm "FamilyListF", , , "ProvinceState='Qc'"

I get the same error with this simple expression:
DoCmd.OpenForm "FamilyListF"

Same error. thanks

If you create a new button and add the code to that button's Click event, does that work?

Same error.

the following simple expression get the same error:
Private Sub Command17_Click()
  DoCmd.OpenForm "FamilyListF"
End Sub

If you open the Form from the Navigation Menu what happens?

If even DoCmd.OpenForm "FamilyListF" causes that error, then the problem is likely in the form itself.  The statement DoCmd.OpenForm "FamilyListF" has no problem in itself in terms of VBA syntax.  I suggest opening the form manually from the navigation pane and see what happens.

if it opens ok from the navigation pane, double check the spelling on your field.
     ProvinceState=

Same error when i open the form from navigation pane. Thanks to KEVIN, ALEX, K. YIP, SCOTT
The spelling is right.

Is there any code in the OnCurrent, OnOpen or OnLoad events of the form you are trying to open that may be causing a problem?

Have you tried to Compile your database? Any error?

The error S/r:
I get the following error.
> The expression on click you entered as the event property setting produced the following error: Expected: Text or Binary.

WHERE ARE THESE COMMANDS?
OnCurrtent, OnOpen or OnLoad

How are you specifying the province?  Is it a field on a form, combo box, hard coded into the open button, etc. ?

I feel like you are only providing us part of the picture here and everyone at this time is kind of shooting in the dark.
You are probably going to need to provide us some screen shots of forms and / or tables in design mode, so we can see where things are going wrong.

These are events that run when the form is opened.

Open the form in Design View and go to the Form Properties. Click on the Events tab. You will see the events listed.
If it says [Event Procedure] next to the event there is code in that event. Click on the builder button [...] to view the code.

If there is no code, or the code is not the problem, I would suggest rebuilding the form. You can copy any objects on the old form and paste them to the new one. Not sure if making a copy of the form would work or not as you may also be copying the problem to the new form.

If none of this works I would suggest working through the Troubleshooter.

I Solved my Problem by clearing my VBA Builder and re-entering my Expression.
I guest my button was referring to the wrong expression.

Thank you all for your effort.