Use a text box or frame. Anchor that text box to the first paragraph on the page and position it using the dialog box to be at a certain distance from the bottom of the page. Set it to have text wrap around it.

So long as you do not move your first paragraph to a different page, it will stay where you want.

Frames and Textboxes in Microsoft Word

Once you have a textbox inserted, use the Wrap Text option on the contexual ribbon tab.

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That gets you the Layout options dialog.

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The dialog box shown above gives the result show below with a text box. Note, you can turn off the border on the textbox. Note the anchor shown for the first paragraph. That is where Word thinks your text box is.

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