We’ve repeatedly asked the seller to provide the tenant’s rental payment history, but there has been no response.I asked my realtor how we can verify the payment history, but she didn’t directly answer and simply mentioned that I can either accept or deny the lease (it’s a month-to-month lease, which I’m fine with).Should I move forward with the sale?

Why does denying agents the ability to show a commission benefit anyone? 

They can't deny you from entering your own property.

Just wanted  to let you know simply being a veteran may not be the best thing to deny a tenant. 

Denying entry is a lease violation and grounds for eviction.

Quote from @Denis Ponder: My plan, after I accumulate enough property, is to refinance certain properties each year and collect the tax free "income" from that property and enjoy life. 

They adamantly denied that their caller was slacking.

Quote from @Denis Lin: Quote from @Scott Michael Gross: @Stefan D.So the buying process was quite smooth because the agent that we used with them was amazing.  

The problem with that is if you are trying to buy a property and the common rents are less than the "midterm" rents it will get denied in underwriting. 

Once the application comes back I approve it or deny it based on my criteria.