Make sure it is clean and in good condition. 

I obviously keep the grass well maintained and sidewalks clean but would some mulch and flowers beds be worth it or just another thing to maintain and not worth my time?

We listed our home for an exhorbinant amount due to a realtor telling us it was worth way more than it was. It sat on the market for many years and we finally took it off. then the asking price was several hundred tho...

General clean up.

The float with the tablets in it are set to release at the minimum amount to keep the Hot Tub clean and sanitized.

Surface- Rock or hard surface (concrete/asphalt); If on rock/asphalt put your tongue leg or stabilizer pads on wider pads to spread the weight out.

You could also look at laying a floating floor over the existing carpet (depends on what it is) and then take it with you when you leave.The risk to the owner is the tenant leaves behind a substandard floor and you have to pay for new flooring.Try professionally cleaning the carpet (or rent a professional machine).

Make the Seller get rid of them so it is vacant and clean before you become the owner.

Let the contractor have the place to himself, get it done, cleaned up and then rent it.

We also look at the building, landscape, painting, general clean up.