i have to big of a bounty in markarth and they wont let me pay it off, is there possibly a command to lower it?

you can pay it off by sneaking up behind a guard, then stand up and quickly talk to him.

He will say something like "Wait...I know you"

etc

Copied from the wiki.

player.setcrimegold XXX

Set it high if you want to fight, set it at 0 if you want to be free.

• NOTE: Each city has a different bounty which requires the faction id to be included in the syntax to work properly. Faction id's can be found by typing 'help "city name" 4' then using the id number following FACTN: in the above format and use the 'PageUp' and 'PageDown' buttons to scroll through results.
  
• Eastmarch (Windhelm) - 000267E3
  
• Falkreath Hold (Falkreath) - 00028170
  
• Haafingar (Solitude) - 00029DB0
  
• Hjaalmarch (Morthal) - 0002816D
  
• The Pale (Dawnstar) - 0002816E
  
• The Reach (Markarth) - 0002816C
  
• The Rfit (Riften) - 0002816B
  
• Whiterun Hold (Whiterun) - 000267EA
  
• Winterhold Hold (Winterhold) - 0002816F