You brought up some good points I didn't consider like the threat of rising lot prices, would you say that rent in the area tends to grow with lot prices?

Tenants are irresponsible by nature and will be a serious threat to septic regardless of what you tell them.Septic + Tenants = Expensive Mistake

His former managers also allege that the five houses included in Monday’s motion were used as collateral for the loan, and since Depp has stopped making payments, they want to sell the houses.The threat of foreclosure is just the latest exchange in what has become a bitter back-and-forth between the actor and his former managers, who he claims mismanaged the $650 million he’s made in the last two decades to the point of depletion.TMG later filed a cross-complaint against Depp, claiming the actor lived an “ultra-extravagant lifestyle that often knowingly cost [him] in excess of $2 million per month to maintain, which he simply could not afford.”http://people.com/movies/johnny-depp-slams-new-for...

Instead of being an expert in construction and a trusted partner, he was just an expert in deception and lies.The drama continues with heated conversations, money demands, and threats.

I would not bother threatening him with that since it is an empty threat.

My main question today though - I'm willing to supply glue traps or other traps that the tenants view as less of a threat to their family and pets but is it my responsibility to empty and/or dispose of the traps?

I am not positive but this situation might trigger the provision in the state law about domestic abuse and the tenants might be correct that they can legally break the lease.The other poster was correct the clock Begins to run on 30days after a forwarding address is received For return of the damage deposit.By law you have to itemize any items deducted from the security deposit to the threat of treble damages.My inclination is I would check the lease, and get them out ASAP.

This could be a bigger threat than earthquakes, hurricanes or tornadoes because the effects could go on for decades if it gets bad. 

I find when you approach with lawyers and legal threats, people become combative.

Like most people they have their own systems and ways of doing things and when you come in you will obviously be changing that, and they may see you as a threat to their control or management.