@Dave112, you will want to spend some time in this forum looking up "insurance" and "damage" and "host guarantee" and "security deposit". You are not as covered as you might think you are...
Really, it's well worth the time you will spend. Brace yourself for some unpleasantness. But, on the bright side, I am one of probably thousands of hosts, maybe more, who have never had a speck of trouble beyond some guest messiness. You will be seeing a very dark side, but best to be armed with knowledge.
All the best with hosting!