Will a co-applicant who has bad credit hurt the chances of the primary applicant getting approved for a loan assuming the applicant has good credit?

What if co-applicant fails?  Co-applicant for bad credit?  Co applicant of a bank loan?  Denying an applicant credit?  How does a co-applicant help?  How does a Co-applicant work?  Joint applicant on credit card?  Is the applicant known to you personally?  How would you desctribe the idea applicant?  Can brother be co-applicant for housing loan?  Will a co-applicant affect your credit score?  In what capacity have you know this applicant?  How does an applicant get rejected for section 8?  What disqualifies a rural development loan applicant?  The applicant of a loan do they have to be on the title?  Will you get approve with a loan if having a co-applicant?  When renting a house soes a so applicant need to be listed?  How can you convience our applicant to apply to our company?  Does being a joint-applicant on a car loan affect boths credit?  What is the Amail address for applicant in technonet system corp?