@Al Murray @Anthony Thompson @Brandon Ingegneri @Kyle Brodwater
The state of Rhode Island requires the new septic to be installed within one year of the closing date. The property is currently occupied.
I contacted the bank today and got some info. The closing attorney would have to hold 1.5 times cost of the install in escrow and once the system was installed and signed off by the town any unused funds in escrow would be released to the seller. Once the septic is installed I could then refinance to a new 203k rehab loan to make the necessary upgrades I want to make.
After reading through the links that Anthony provided I found out that if the town has plans to be sewered before Jan 1, 2020 and the cesspool is not failed then I may be able to certify in writing that the property will be connected to the new sewer system within 6 months of receipt of notification to connect to the sewer systems. I'll have to contact the town about there future wastewater plans on Monday. This would be a much cheaper option.
Thank you all for responding and providing insights and information!