Any year I do this in the future there is a 2 year look back for health care cost.

Don't forget to add fringe benefits such as health insurance and also payroll taxes, etc. 

That is a health code violation.

In most cases, the mold is not airborne and causing health problems. 

Under this idea, you'd need to see if the Health dept has any restrictions for your septic system (which i assume you have) and if the power company would meter the 2nd unit separately. 

Also, the ability to export reports for partners or lenders would be a plus.Essential Data/Analytics: Reliable rent estimates, cap rates, cash-on-cash return, operating expenses (especially maintenance and CapEx), and local market trends like population growth or job market health are key for decision-making

He just wants to sell the house and use to $ to help his father with health issues, so he's willing to sell for under market value.

Analyzing the impact on your overall financial health is critical.

I also received a letter from the county saying that my property is in violation of several health and safety codes. 

I am interested in MTR for my properties in Akron, OH as one is walking distance to Summa Health Systems Hospital there and the other is a 15 minute drive.