If you can sell the home for $400k but only rent it for $1,800 it seems like a no brainer to me - sell and pocket the profits.
Using basic rules of thumb, operating expenses and vacancies make up about 50% of the rent. That leaves you with $10,800/yr, or a cash flow of $912/year ($10,800 rent - $9,888 in PITA). that's pretty close to $0.
Your original purchase price does not figure into the equation - only what you could currently sell it for vs what you could get in rent.
From your numbers you could sell for $400,000 - (6% sellers costs /$24,000) with $153k remaining on your mortgage gives you net $223k
So which would you take - $223,000 now or $912/yr. Since you have 27 years left on your mortgage you won't get a boost in cash flow anytime soon, so ignore that.