If after adding the additional monthly recurring costs (electricity, gas, water, internet, insurance, lawn care, snow plowing, etc.) to the standard long-term costs (Mortgage, taxes, regular insurance, etc.) the property won't net at least $100 if I can get the average rent I see on FF for that area, then the property isn't worth more investigation.

On top of that, my company provides a vehicle, gas card, and I am paid from the moment I dispatch my home. 

Few more points:Their lease is valid till May 2025.This is the first time she even told me about mold.In the email she did ask me to settle the lease.I have a little less than a month of rent as security deposit, which I am ready to settle without any additional penalties for abandoning the property.At this point I am okay with her leaving the place, just I want to get the control of the property back to fix the mold issue.History:1) Recently the AC has been replaced and after that there was some intermittent issue with the installation (temp doesn’t reach target intermittently) and I had to call the tech back 5 times to finally get it resolved.2) Also last month I replaced electric range with Brand new Electric range.3) Two months back she said the refrigerator was leaking, I asked her to send picture of the make and mode of the refrigerator, but I never got a reply back.4) Also for last 4-5 months she has been asking me to send her 5-day notice so that she can claim reimbursement, I was sharing a document and she was paying the rent a little late.

Separately metered gas & electric are generally viewed as more valuable because water is less commonly metered.

Tenants should be paying for electric and gas in any case.Third thing: make sure that you're scheduling tune-ups, once in the Spring and once in the Fall.

Rent Relief (I think it came from the Covid Rescue Plan) just paid 7 months worth of rent (past and future rent) as well as her water and gas bills.

i.e property can't be rented with a leaking roof.  

If there is a leak I look at it.

Then after that split is taken out, we pay income taxes to Uncle Sam, errors and omissions insurance (in case there's a lawsuit), Realtor's Association dues, MLS fees (so you can look at properties on Zillow), monthly technology/desk fees to our broker, health insurance, car insurance, gas, maintenance, clothing, computer, cell phone, software, marketing, etc.

Recently, we had a leak from the A/C in the attic.