Thanks for the replies everyone. I will try to answer all questions as best I can at this point.
We do have a written agreement and unfortunately, it is for 18 months as I offered a $75 discount for agreeing to the longer lease.
I like the idea of looking in prospective tenants vehicles, unfortunately it was a February evening in South Dakota when they came to look, so not a lot could be garnered from that.
We probably could have done a better job of screening. I used Houserie for credit and criminal background checks. References were pedestrian, not glowing, but not bad. Credit was not great, but there are two couples living there (sisters and their significant others). Due to their level of combined income and no past issues with rent payments, I made an exception on the credit and increased the deposit. Lesson learned on that. They do not smoke (Hey! there's a positive)
Excepts from the lease:
16.CONDITION OF PREMISES:
The Tenants hereby acknowledge that the said property is in good condition. If there is anything about the condition of the property that is not good, they agree to report it to the Landlord within 3 days of taking possession of the property. They agree that failure to file any written notice of defects will be legally binding proof that the property is in good condition at the time of occupancy.
18.TENANT RESPONSIBILITY:
Good housekeeping is expected of everyone. Tenant agrees to keep quarters clean and in a sanitary condition. The Tenants agree not to permit any deterioration or destruction to occur while they are occupying the property.
19.ALTERATIONS:
Tenant shall make no alterations, decorations, additions, or improvements in or to the premises without Landlords’ prior written consent, and then only by contractors or mechanics, or other approved by Landlord. All alterations, additions, or improvements upon the premises, made by either party, shall become the property of the Landlord and shall remain upon, and be surrendered with said premises, as a part thereof, at the end of the term hereof.
They acknowledge that they will be responsible for and pay any damage done by rain, wind, hail, tornadoes, etc., if this damage is caused by leaving windows open, allowing stoppage and/or overflow or water and/or sewage pipes, broken windows or doors, torn screens, broken door and window locks, etc. or any damage caused while Tenant has occupancy.
22.NOTIFICATION OF SERIOUS BUILDING PROBLEMS:
Tenant agrees to notify Landlord immediately if roof leaks, water spots appear on ceiling, or at the first sign of termite activity. Tenants also agree to notify the Owners immediately upon first discovering any signs of serious building problems such as foundation cracks, a tilting porch, a crack in plaster, buckling drywall or siding, a spongy floor, a leaky water heater, etc. If the tenant does not notify landlord in a prompt manner the tenant may be held financially responsible.