Hi Brandy
I think each of these has strong potential as viable additions to or even as a focus of your VA practice - my only concern is that they all sound like a LOT of work in terms of getting established. I might suggest choosing the one of the three that will be most satisfying for you and pursuing it full force. Focus your marketing on that particular niche, network in the relative areas to find contacts and get your name out there, and beef up any additional skills or knowledge for that particular niche.
I know it's tempting to want to do it all and do it all at once, but a strong business model is focused and doesn't compete with itself, which I'm afraid you'd be doing were you to take on all of these in one fell swoop.
Maybe you weren't asking about taking on all three, but more about which one might be most viable? In that case I'd say, again, the one that means the most to you, that will make you happy and feel fulfilled.
It makes sense that the insurance angle would mean a lot to you and you'd surely be helping people - and while I don't know much about insurance, I'm not sure that the hospitals and insurance companies would accept a third party stepping in on behalf of the patient, unless it was a lawyer (??) What are your thoughts on that?
The renovation estimations angle is a good one and could actually be applied on a broader scale - if it's something that interests you then go for it!
I'm always intrigued by how VAs manage to make a success of event planning as a virtual service provider...I guess it's hard for me to really see the logistics of how it would work..wouldn't you have to be able to go to the venues, etc. to check out the space in some cases?
Just my initial thoughts - I love that you're brainstorming far and wide - you're on the right track for sure!