Take it or not?

[D D]

So I am renting out my first property in Phoenix. It is a house I lived in for 6 years so after my wife and I were just married we naturally bought another home. The mortage and impounds come to $1175/month and the area comps for the home are between $1250-$1350. I am asking $1300/month and receiving on average 1.5 contacts per day for the past 2 weeks although I have only had one applicant. . . until yesterday.

An older retired gentlemen and his wife made a CASH offer of $7k up front for 6 months. That comes out to $1166/month which will obviously incur a loss since that will not even pay for the mortgage. However, it is a cash offer which has some incentive but that is where it gets cloudy as a beginner investor.

Should I even consider this offer?

Having the cash up front would be nice so I won't have to worry about tenants making rent for 6 months, but I will incur a loss. So what advantages and disadvantages should I be considering with this proposition? Thanks!