Keep following up to provide documents.

Paid $270K for it initially with my HELOC and used an additional $70K from my HELOC to renovate the property.

I am a local Realtor in the Orlando area and could provide some insights into the value and appreciation potential.

They were also able to provide new estimates on the work needing to be done including correcting everything the original contractor had done.My question is, should I pursue some sort of legal action or just never get into contact with said contractor again?

I am certainly not a tax expert, but fwiw, I just looked at my closing statement from the purchase of a Brooklyn multi-fam and as purchaser, I paid the following taxes:Transfer Tax Additional Transfer(mansion)taxTransfer Tax Supplemental NYC(mansion)taxMortgage Tax 1st mortgage

Wow that's a little surprising to hear.I did a bedroom addition myself in my own home and the inspectors really didn't check much of anything at all. 

I would really appreciate any sort of direction, links, information that could be provided.

Tomorrow is my last day before I lose my earnest money and the owners haven’t provided proof of month to month leases.

In addition, once you get a viable plan in place, you may consider running the strategy by an actual tax attorney rather than a CPA.

For additional reference, I live in TN.