The go-to person on issues of self representation is Richard Zorza. His blog has this post which should be of interest to judges and court administrators struggling with plain English issues:
In all the talk about LEP and plain language, this site has tended to sit under the radar. This great resource site includes a wide range of model plain language informational sheets, including non-English information. WriteClearly.org includes informational materials, and ATJ interview screens, as well as a gadget to find non-plain language.
Here, for example, is a Spanish name change information sheet.
The site was developed under an LSC TIG grant.