Thanks Mark and Bob. One of the clauses of the lease agreement is a bit cloudy. Under the rent section of the lease, it states "The landlord may increase the rent for the property upon providing the tenant such notice as required by the act." There isn't a definition of "the act" unless they mean the term of the lease in which, isn't defined.
The issue with this property isn't really with the property itself. The owners have treated their tenants more like friends than tenants. For example, their response to some clarification that I requested seemed defensive. I asked about raising the rent and they said that "I was not planning on raising the rent on the property until the lease was up...if then..."
Also, in the lease under pets, they don't charge a pet deposit, just a clause that says "A reasonable number of pets or animals are allowed to be kept in or about the property. If, at the sole discretion of the landlord, this privilege is abused, or if the pets damage the property, or if the pets cause problems or interfere with the use and enjoyment of the property for the other tenants, the landlord may revoke this privilege upon (30) days notice.
I know that I can increase the rent of one unit by $100/mo and the other unit can be increased by $150, but taking over the property with no security deposit for the pets (there are a total of 5 dogs between the two units) has me a bit on edge. Aside from that, the numbers make sense and would generate about $400/mo PCF even with the 6.5% 15 year term I have on financing.