If overpriced, you with attract unqualified tenants. 

When you say a man in debt is a slave, are you referring to debt used for personal items, or are you including debt used to acquire income producing or capital appreciating assets also?  

The city has attracted substantial investments from companies like Intel, Google, Honda and more driving job growth, increasing housing demand and boosting property values.

It makes little sense to keep the property in Dallas since it's producing practically no cash flow.

A good PMC screens for and attracts the right tenants, for a much lower price. 

Do any of you experienced investors/landlords/property managers have effective strategies you use to make a unit more attractive?

Hey Hanzel,Multi families are great wealth producing investments and also very long term.

I once downloaded and analyzed Zillow data to find markets with attractive cap rates...

Here the IRS has a reason to challenge your credibility and the credibility of your self-produced numbers.

Like someone else mentioned, if you took concessions for the issue they will produce the documentation and get your case thrown out.You can pursue an as-is sale, make sure you disclose this issue.