Hi Violet,
Congratulations

on starting your own business. As you know today's business owner must have a web site in order to find business and being a virtual company this will be your main marketing.
When you have a website to show the world you need to get it submitted to the search engines and pronto. If you know someone that is familar with
SEO ask them to help you are barter with them.
Hopefully, you already decided on the services you are going to offer and now you need to market to those individuals.
Find VA organizations that have RFP programs and accept your specialty - join and become proactive with members - let them know you are interested in newtworking, sub-contracting, etc. You need to get your name out there among the community.
My business comes from 75% referral and 25% Goggle! Believe me when I say this - Createa website, make it standout, then start marketing and networking.
You are working with locals, you might offer them a discount by referring your services to others. People love discounts! I use to offer 2 hours of service for every referral and it worked.
I hope my suggestions are useful.
Kim