Looking for an ongoing part time virtual assistant

Hello, I'm looking for a long term, part time virtual assistant to help me with some online business projects. I have a couple of websites that I run at the moment that make me some pocket money, I want to keep them running but don't want to have to manage them as much as I do. I am planning on launching a third project soon, which will be a focus for me as I'll want to build it into a serious part time business. I am also planning on launching an e-commerce store shortly. I am looking for a general virtual assistant (GVA) to help me out with bits and pieces. At the moment, that will mostly mean online searches for various keywords, analysing content, reaching out to other websites to make contact for partnerships or link building, managing and scheduling posts in wordpress for me, using [login to view URL] to create images for wordpress posts, scheduling posts for social networks (Facebook, twitter, pinterest). Other things as required, I am sure there is more but I can't think of it at the moment! To start with my budget is small so might only be 5 hours a week, but in the next few months that could grow to 10 or 15 hours per week depending. If things work out between us, I would be hoping within 12 months to be able to hire a full time virtual assistant - but that is too far down the line for now. So starting out about 5 hours per week, I will provide a list of specific tasks to be achieved, and if you run out of specific tasks I will have a big list of 'other tasks' that can just be worked on when there is any spare time. This will be my first time hiring on Freelancer so you will have to bear with me a bit, I might not understand how it all works but we will get there!