Legal Question in Family Law in Texas

You can't file for temporary orders unless you are also pursuing some form of long term conservatorship as well. There is a filing fee for both the temporary order and the lawsuit to establish a more permanent conservatorship. Plus you need to serve the other party with process, which requires paying a process server. The filing fee schedule is available on the Dallas County District Clerk's website.

I suspect you would benefit from talking to one of us family law attorneys in the area. Obtaining sole managing conservatorship is not an easy task, even where there is drug use or abuse involved.