I always try to determine candidate's degree of professionalism first and foremost. Specific job skills and tasks can be taught. Tact, professionalism, and compassion are keys traits that I’m looking for regardless of the position.
Here are some common mistakes to avoid:
Calling the HR dept. excessively - to check the status of an application.
Lack of initiative - not completing the application thoroughly, spelling errors on correspondence
Lengthy cover letters - your cover letter should only be a few focused paragraphs. A page long cover letter is typically not read in full.
Identifying why you aren't qualified for the position in the cover letter - "I don't have any hospice experience but…." Focus on the skills you do have and just be yourself.