Is there lost rental income deduction?

Hi,

This is the first year of filing taxes after putting our old home in the market for rental.  Say we put the home for rental and took a month to get the rental started and the monthly rent is $3k.  That 1 month is a lost revenue.  I wonder if it qualifies as some kind of loss such as property vacancy etc.  I doubt that it does but figured I ask instead of assuming. 

More importantly, while TT will ask me relevant questions, I am wondering if there is a good website or reference I can read that is like taxes101 for new landlords.  I can thus avoid asking basic questions. 

Thanks!