You messed up and are complaining that the title company is being restrictive and not cheerfully accepting verbal abuse from your sellers.

Normally the tenants understand.If you're having consistent issues with a tenant abusing the HVAC only (if they are abusing other items then it may be helpful to find a new tenant), I know some HVAC companies offer an annual plan with a certain number of visits per year at a flat fee.

THAT is the reality of it, the vast majority do NOT use it for it's intended purpose, they abuse it, and next to nobody in that world does a damn thing to stop it or put those in check. 

It was a balancing act on my end, I had to buy furnishings that were tough enough to keep up with the abuse of my guests, but affordable enough to not break the bank.I have put together a list of items for when I purchase a new STR, and would be glad to send it your way if you want to PM me.

If not, your case may be difficult to prove.They should take responsibility for the lawn, security, and utility abuse.

What you've written is the equivalent of the abused woman who stays with the abusive man because he'll change. 

I politely listen, sometimes offer that I am an Investor too, but hear my fair share of abuse that I need to lower the price, and should consider their Offer because there is no other agent and I can keep "both sides" - another ethics violation sigh ... 

Quote from @Samuel Mutschler: This is mental illness, substance abuse, or someone trying to get out of their lease.I would tell them the rental is unsafe and they should leave.

And we take a bus and see several properties with the builder. 

Denying application because of pet is not about discrimination (man they abused this word so much), it's about who pays for the cleanup cost.