Hello
I can definitely extract the original source code, update or develop and then deploy the web services. I have done all those parts many times in my career, having worked on things like web services and APIs, XML formatting and ASP.Net/T-SQL combination several times. And I would be happy to do this job for you.
I am a Danish Software Developer with 10+ years of experience in the Microsoft stack. I was living in Dubai, but I recently moved back to Europe, so I am now closer to you (time-zone wise).
If you want open communication and both fast and precise work in one take, you should initiate a private chat with me so we can get started soon.