Tenant Screening- Tenant Offering 7 months in advance

[Brian Camey]

So I just moved out of my first house hack and want to finally cashflow on this duplex. While screening potential tenants (and there are a lot) none really stand out as GREAT potential tenants. I have come to realize that credit scores for tenants are not going to be great. I am making this post because I wanted some advice. 

A tenant offered 7 months of rent in advance (at 1500 a month), I'm guessing to overcompensate for a poor credit score AND a misdemeanor on her criminal record (I have not run the background check so I don't know the nature of the charge yet). I am thinking of offering a 7 month lease and go month to month. What do yall think