We are always improving add on and complicating our plans. 

Knowing why would greatly improve my odds in negotiation.  

If your house goes down in value, so should your taxes, which would improve your cash flow without having to raise the rent.Don't get me wrong, I don't hope my houses depreciate (mainly since I like to refi to get all my cash back out to use again), but there is a silver lining when it does go down.Joe VilleneuveREcapSystemA2REIC

The taxes and insurance (homeowner's policy) are in the buyer's name, paid for by me (additionally insured) as part of their monthly payments.If the property needs work, or upcoming repairs (new roof, windows, etc) I include these improvements within the contract with a penalty cost if not performed by agreed date.

I'm not sure how your county tax office works, but in Dallas values are broken down by land value & value of improvements. 

Some sprucing up with some paint, along with a very thorough dejunking and cleaning might be all that's needed to get a sale.Even if some major improvments would draw a higher sales price the cost of those improvements can easily exceed the added value. 

My hope is to improve the value of the property over time as an on site landlord as well as gradually increase the rent to increase cash flow potential.

I'm getting better but there's always room for improvement.

You have not done any improvements or repairs to the property from the way it sounds.

Ahh, the fun situations we all run into while trying to honestly improve a neighborhood and, make earned money for your work and creativity and at time save a degrading house that helps turn in into a home - don't worry, it happens to us all at times.