Tenant lied on application

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I received an offer from a prospective tenant to pay an entire year's lease up front. This seemed like a good offer to me, so I had basically decided I would rent to this tenant (before I had checked her background). I was, however, uncomfortable with the fact that she was unable to provide proof of income/employment, but dismissed this as she "claimed" to be a self-employed model.

As I started checking into her background, however, it seems that she falsely represented her occupation on the application. On her application, she stated she is a model...however after digging deeper, I discovered that she is actually an exotic dancer.

I don't feel entirely comfortable renting to her based on this new information. Not only did she fail to disclose her true occupation, but I'm concerned about the type of personal lifestyle she might lead and what might occur in the confines my property.

Based on the above, what would you advise? Should the fact that she wants to pay the whole year in advance be enough to counter my concerns that she lied about her occupation? Assuming her credit report is okay, is my discomfort with the entire situation grounds to deny her application? ...Or am I being discriminatory?