I need a professional logo designed

Information for the business: We do estate planning e.g. wills, trusts
Industry: Legal
Type of logo: Pictorial mark
Number of revisions: unlimited if needed
Ideas for the visual style: I would like to incorporate a tree within a circle, possibly with the circle breaking at the bottom of the tree at the trunk. I'd like the image to be simple and for the tree itself to be white and the rest blue.
Things to avoid: Too much fuss
Preferred colors: Dark blue
Where the design will be used: print, web, stationery, signs
Extra notes: I want the logo to be 100% original vector logo which is scalable to any size without any quality loss. I'd like ai, jpg and png formats. I'd like something similar to that attached but with a fuller tree.