Usually they comply when there's incentive.

If they don't comply, then they are gone.

Dan, Your proposed 3rd lien placed on her residence will need to comply with both the Dodd - Frank Act as well as provisions of the Consumer Financial Protection Bureau.

Since you're not even sure what type of notice should be served, I'd recommend getting one from an attorney or a property management company to make sure it will comply with your state's laws just to be safe.And if the tenants are Section 8, the Housing Authority requires that you send them (the Housing Authority) a copy of any notice you serve to the tenant. 

If the landlord doesn't comply, the tenant can go to court and may be entitled to three times the amount of the security deposit or the remaining balance to which the tenant is entitled after lawful deductions with interest, plus court costs and reasonable attorney’s fees.

I suggest to maybe talk to a flat fee eviction attorney who can send out a letter regarding lease violations and just be upfront with them that if they don't comply you will terminate the lease.  

Winter vacancies are always a challenge but they pale in comparison to triple damage penalties for failing to comply with MA landlord laws.  

The installer isn't going to do anything for me when I need to evict someone and can't as an unlicensed landlord so I'll comply on the cameras because they'll be obvious and outside.

So call and find out from the Fire Dept what time they are coming.I'd have the electrician still come and if he check the problem make sure he leaves some type of paperwork giving date of service and service done.Obviously the Fire Department does the inspections for your city and the tenant feels they have the right to ask for them to come out, which they do, you shouldn't have a charge from fire dept for this but they will inspect to make sure of any things in condo apt that needs correction they will write up an order for that  and you will have a period of time to comply and schedule a reinspection. 

And for the sake of simplicity, let's just say that my assumptions are accurate because if I am wrong, then nothing happens and everyone complies with their commitments.