How to Edit Parent Theme's HTML

I asked a similar question here: https://bit.ly/1XtnsRZ But now I’m using a new theme (portfolio press) for a new website.

Again, I’m trying to figure out where I can edit the “HTML” for the home page (I know it’s actually going to be a PHP file). I looked in the directory, but I did not see front-page.php. Specifically, I’m trying to add text to the right of the logo so that there won’t be so much empty space:

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As you can see from the screenshot, the div class “col-width” has id’s “logo” and “navigation” inside it. I will need to add a new id between them for “name”, where I will enter the client’s name using a specified font.

Thanks and let me know if I need to further explain this question!