1. A efficient, and trusted cleaning and maintenance crew - This is the most important aspect of managing any rental property in general. In your absence you need someone local to be you eyes, and ears on the ground. Your cleaning crew should be efficient in do a property walk thru, and being able to perform a proper damage, and missing items assessment.
2. A digital keypad, and climate control - A digital keypad eliminates the need to meet renters for check in, or to have to leave keys for pick up. Assigning a door code for property access throughout their stay which makes everything much more seamless, and accessible for in/outs. A remote climate controller gives you the ability to monitor, adjust, and manage energy outputs of your property which equates to savings overtime.
3. List on a Vacation Rental website - Or you can hire a Vacation Rental Manager to host your guests throughout their stay. There are several vacation rental hosting sites that makes self hosting easy if you choose to self manage, with online payment gateways, and a online calendar.