I can also recommend a painter we just used on a flip that did a great job for us on interior and exterior paint and refinishing all the cabinets in the house. 

I just don't think you are painting a clear picture regarding your father's financial situation.If your dad is not rich and that $100k is money he will need in retirement, I personally would not touch a dime of it. 

Its really not in bad shape just needs some paint, new carpet, and new stove/fridge.

I do Complete Rehab, water fire, mold damage restoration, mold inspections, (re-builds) drywall, painting, post construction cleaning, carpet installtion and tearouts, new flooring, property management, I have 11 certifications, 2 are Master Certifications.

You will ultimately need somebody on the ground to let prospective tenants in the door and to verify that the painter in fact painted the place.

Paint, flooring, sinks, toilets, light fixtures, etc are an easy quick fix and make a world of difference.

If i should look for a good rental, but a house in minor need of repair paint it add a garage then reappraise refinace, just kinda scared.

I just looked at a duplex for sale today that was rented, selling for 40% of its market value with new carpet, paint, hot water heaters and furnaces.

He paints that cardboard to make it waterproof.

Most of the things they inspect are fairly obvious (new paint, clean carpet, safe electrical outlets, etc.).