Thank you note -- too late?

Applying to College
1

<p>I visited a school last week, but haven’t had a chance to write my thank you notes until now. Is it too late? I’m going to mail them tomorrow morning. Also, should I use their first name? Last name (Ms Soandso)? Or both?</p>

2

<p>It is not too late and use Ms. Soandso…no first name</p>

3

<p>Okeyday then. Thanks!</p>