Need help with what to do with cash

[Matt Turner]

I have found some great people to move into my rental.  they are signing a lease today and it starts June 1st.  They are not moving into it till August though.  They have agreed to pay half the rent the first 2 months and pay an additional 50$ / month for the other 10 months to make up for my lose.  I will be living in the unit till they move in on August 1st.  what i am wanting to know is, what should i do with the half rent they will be paying for the first two months.  should i keep paying my mortgage completely out of my pocket and save up the half rent they pay?  Or should i put the half rent towards my mortgage and my my payment out or my pocket less?

thanks