Maybe a damage deposit and sign some paperwork indicating that you take responsibility for any damage? Ask the landlord if they have a favorite fish, stock it. Maybe they would like to have a homegrown catfish dinner?
The problem is not simply the money (and that could be significant), any accident could involve months of stress, extra work, and maybe a tenant free lower apartment for the landlord.
You may need a policy that covers all of the above, and could involve 6 figures.