I can say myself unless I am going on a long planned vacation I am guilty of doing my booking reservations sometimes as little as the day before (though I generally use hotels in that instance). 

And if they did do it, they would feel guilty.

Even if I were sued, I document everything and obey the law, so I won't be found guilty.

In many states pleading can be viewed online though I've never had much luck in VA.

Even if I were sued, I document everything and obey the law, so I won't be found guilty.

Gotta plead ignorance here. 

May be a challenge getting in front of a judge to plead your case though.Also, the judge may simply ask why you can't just treat the infestation instead of evicting.

Would you feel guilty if someone died in the basement when there was a fire because they couldn't get out? 

Call them back and plead ignorance.

Now, with that said, you should protect yourself by filing a law suit against the person of interest and have a judgement from the court to back your statements, before posting names, numbers and personal info on line.Even if the person has done such a dastardly job and ripped you off, he/she must be found guilty in either small claims court ($14-$29) filing fee depending what county in WA State, Civil/Superior ($20-$400) filing fee depends what county in WA.