converting seasonal residence to yr. round

[Marci Stein]

I have a 3 bedrm seasonal cottage upstate NY,which has 

electric heat, a well , and a huge tank in the ground (new , but not a legit septic). 

I'm thinking i can bury the pipes in basement, add insulation (some already there,)

and be good to go for a rental. Am i missing something? Anyone have experiecne with this sort of conversion and if so, how has it worked out?