Is it permissible to use the words "the First" or "the Last" – which are among the beautiful names of Allah – to describe a dear and beloved person, or the word "the All-Dominant" to describe someone who is in control of a situation?

It is permissible to describe a person as "dominant over the situation" or "the first and the last in my life," because this falls under description and not naming with the Beautiful Names of Allah. However, it is always better for a person to avoid using this type of language.