The Nicaraguan Consulate in Miami, Florida, has an improved website. www.consuladonicamiami.com.
Information on Residency in English. Lots of useful information provided by the Nicaraguan Government. Email addresses to send questions to. Use Google "Language Tools" to translate the website or individual documents.
Please keep in mind that the "Residency Requirements" can vary a lot depending on who you talk to, i.e. Goverment workers in Nicaragua, attorneys in Nicaragua, people who obtained their Residency one to 10 years ago, employees at Consulates/Embassies in the United States, etc.