Administrative Office/Personal Assistant

A new start-up company that will be performing land clearing, grading, site prep and underground utility work, is looking to hire an experienced part-time, for now (full time as soon as work comes in) office administrator for all normal office. Who will also to assist me, the owner with my personal items. Organization, and memory will be keys factors. Must know and be able to execute all microsoft office products, Organizing, Excel, Outlook, Word, be neat, keep Motor Vehicle and insurance files up to date, (there are many) keep all insurance for all vehicles, properties, etc. Have knowledge of computers, social media for use of advertising and sales. This can be a great opportunity for partial ownership in the future. I want to retire and my sons will take over and they need someone to the run the office. So please, be experienced.