While the interior is nice, the first-floor kitchen and bath are original from the 1940s.

We redo the kitchen with granite or quartz, stainless steel appliances and new floors if needed. 

Focus on key areas first (like floors, walls, kitchen, or bathroom), which may help you handle the costs more gradually, even if it means moving in furniture or updating fixtures down the line.Also, since the tenant left it in rough shape, be sure to document all the damage (photos, receipts) in case you decide to pursue reimbursement through their security deposit or in court.

The builder had a given us the paved yard, Granite kitchen top, washer and dryer at added value with no charge.

That stopped when I stopped using third-party cleaners, but I also started to only leave enough for the stay.I use a small Dawn hand dish liquid that I fill between guests and larger hand soap dispensers in the bath and kitchen that I fill between guests. 

Shoot for middle of the road kitchen utensils, blankets etcOtherwise it is pretty easy to have most of your stuff scheduled to arrive at the same time.

I am seeing a roommate who does not have pets.Cozy furnished 1 bedroom with living room and kitchen privileges, your own private bath and a shared refrigerator.

You can't call up Apple's CEO and suggest improvements, but you can definitely upgrade your rental property's kitchen to command higher rent.

In my market you can do a cosmetic rehab: new kitchen, floors, new bath, recessed lighting, taking down some ways, screwing down floors, new paint, baseboards, trims, casing. 

Hey Denny - For rehab costs, a good place to start is breaking things down room by room and getting rough estimates for common repairs like the roof, HVAC, kitchen, light cosmetics, etc.