I was planning on removing it but I'm curious if there's a market for this.

front yard renovation. removed all bushes and trees and placed rock and garden also added a water filtration system inside the home

I know landlords in NJ have the right to remove someone from there property if they want to move in (This only pertains the small multi-facility properties I believe).

Most of my properties are NNN so I manage myself, but, this one is about 150 miles away and will need a bit more management (snow removal,parking lot clean up, etc).  

You're not counting fake expenses that you can just remove from the equation are you? 

New furnace good for 15 years.Contractor recommends 80% (for a rental) because of maintenance issues with extra venting and water condensation that needs to be removed.

But the rehab process takes me about 2-3 years to finish because i work Full time and only have weekends off to rehab. is this a good idea or am i wasting my time or is there a better alternative?

Sometime in the future I'll install more luxury vinyl flooring and at that time when the carpet is removed I'll have the drooping floor repaired. 

Yessir I agree i ended up finding my own inspection person to help walk me thru properties so I can gain knowledge very good investment precision is key I try to be as transparent up front when sending out my contracts to cash buyers with my format also I get pictures on all the properties to show how distressed they are so I don’t waste the investors time or mine I like to help people out and I want both parties to receive what they deserveAnother reason why I need help with building a bigger and consistent cash buyers list so I can see what cash buyers like and what numbers work for them.

By removing that risk your offer doesn't differ much from an all cash deal.