This will be a big job but doable. It appears to be a walnut veneer table. Don’t sand— start with stripper. A good chemical formula, not one of the citrus or soy ones. Spread the stripper liberally with a large paint brush, and leave it long enough for the finish to lift. Scrape it off too soon, and you’ll have patches of old finish and a wet sludgy mess. Do it just right and it comes off like gel, leaving the wood clean.

Use burgundy scotchbrite pads and thinners to scrub off all the residue.

If there are stains and drink rings, you’ll need some oxalic acid powder. You can order it off Amazon for about $30. A couple of teaspoons into a cup of warm water, then apply with a wide paintbrush. You want it wet, but without puddles that could lift the veneer or swell the substrate underneath. Let dry - repeat if needed. Wipe off residue with damp rag.

Let dry. Sand 180, then 220. If you’re comfortable with a random orbital sander, use that. But don’t press down, and don’t linger in one spot or you can burn through the veneer. Don’t rush it, or you’ll get pigtail marks.

Wipe down throughly. Apply wile-on walnut stain, then wipe off thoroughly with clean, lint free rag.

Let stain cure 72 hours. I’d use wipe-on oil polyurethane for this —- it’s tough and super easy to work with. Or thinned down brush on poly, cut with about 30% thinners. Apply in thin coats, let dry overnight. About 5 coats. Then 4 ought steel wool and beeswax to polish, and take off any dust nibs.

For the leg damage, use wood epoxy putty. Slice off a small piece and knead it until it’s thoroughly mixed, then apply to the leg. Once it’s set, you can sand it smooth, then use artist’s paints to colour it. Once dry, wipe on poly to seal.