The time if relevant as is the process of providing move in inspections, move out inspection with written notice to provide any corrections needed by tenant.

Standard procedure is to post your state-specific notice of lease violation, and then perform a follow up inspection at the expiration of said notice, to determine if the violation is cured. 

She’s on a month to month so give her 30 days notice before the drama starts.

Ive noticed there are some sketchy wholesalers and some that put a bad name on the industry.

I believe the overflow came out of the washing machine drain (first noticed there by the tenant), but I don't think that rules out the kitchen sink as the source. 

Take notice....One of my favorite sayings came from a favorite Civil War General - "never take counsel of your fears" ...John Jackson

Tenants don't notice things because they don't want their rent to go up.

I would lay it out to your tenants that you are only giving  a 6 month extension or let them go month to month and give notice in advance of when you want to put it on the market. 

@Chris Carrigan Do you notice any home warranty companies operating in the Raleigh metro area being popular with your buyers?

I understand that a typical rental analysis takes the monthly rental amount, sets aside 5% for vacancies, estimates 50% for expenses, and then makes sure the remaining 45% pays debt service and leaves a profit.But I've noticed that mortgage calculators often include insurance and tax payments in their monthly mortgage payment estimates.