If the landlord uses a lease that contains any provision that conflicts with the Security Deposit Law and attempts to enforce that provision or attempts to obtain from you or a prospective tenant a waiver of any provision of the Security Deposit Law, the landlord cannot keep your security deposit for any reason including making deductions for damages.

She could do some real damage to the place.My first idea was to do that magical eviction where you offer like $500 in cash if the tenant is willing to move out in 1-2 days.  

Lastly, I can tell you my experience in evicting tenants and suing for damages done. 

Tenants rarely report issues like leaking toilets and drains and considering how much damage can be caused in 3 short months I consider it mandatory.

All parties agree that termination of this agreement without prior notice before 6 months will constitute breach of the tenancy as agreed on page 1, and all Security Deposits shall be forfeited in favor of the LANDLORD as full liquidated damages at Landlord’s option following termination without notice."

A leak on the third floor could damage the units below.  

I would consider talking to an attorney about a civil suit for damages... especially if this impacts the sell.As your agents, their primary responsibility is to take measures to ensure the profitable performance of your investment properties.

A broken water heater or a water damage, or a vacancy of a couple months, or a tenant turn over will throw most of the profit for the year.

Not sure how they  might handle the utilities, but make sure the lease to parents includes verbiage about damage due to lack of heat (frozen pipes) or electrical power (flooding due to sump pump not operating).My $0.02...

Also at the end for the day, the water heaters I have had fail, simply had a slow Leak in the basement and continued t function perfectly without any damage.