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Is that your only collection? Depending on how much it is, I might just pay it off.
Have you disputed the debt or written the collector for verification of the debt?
I often refer folks to the Federal Trade Commission website:
There you can research the law (Fair Credit Reporting Act) and follow the procedure (ALWAYS send requests in writing via Certified Mail) so you can get the same results all the "for hire" companies would obtain.
Good Luck and go buy a house!
I can help you with a mortgage and get the collection removed. Hit me up TerrenceGreen@Icloud.com.