The owner has two parcels totaling roughly 8.5 acres, but it is zoned Resource Conservation. 

I see replacing the unit if energy conservation is important to you or you want a better functioning unit in your apartment for future use.

As far as Advisers/mentors go Bigger Pockets is a resource that I plan to really utilize throughout my venture :)

However, in any deal you must still bring some value to the table (capital, experience, ability, resources, etc) otherwise the remaining parties have no motivation for your involvement.As a new investor with no demonstrable track record capital is your easiest ticket to the table.  

What are some other resources or tools that you can use to find out more information?

One suggests converting into mini splits for reasons 1. units already wired for electricity heating and lots of work have been done2. mini splits are more energy efficient than current system3. it provides air conditioning in summer which would be attractive to tenantsAnother suggests going back to boiler because electricity is just too expensive.

Brandon's book on Investing with no or low money down would be a good resource as well.

If no editable sample is available, may someone provide a resource to access this info?

I feel like if I was in my 20s I'd have a lot more time and a lot more energy and would be willing to take more risks, but now that I'm older, I'm not sure what the best path is going forward.

BP is an amazing resource!