If anyone has resources for this it would be great as I am not pulling up anything state specific.

my self :). we specialize I mulit-units in MA from beginner into the commercial realm with national commercial lending resources and the top 1031, DST, Safe harboring and fund compliant management for syndications

Would love to learn from any advice you have to share-any resources that helped along the way.

I am local and am happy to be a resource if you ever need it, or if you have any questions about financing your first property. 

What book or credible resource would you recommend for me to read and or research?

I would either find a resourceful realtor and use them, or do research on how to offer on the land yourself.

The resources that Biggerpockets gives us for the 50 are so helpful to rookies, I know Puerto Rico is not a state but some help from BiggerPockets would be amazing.

That size would limit the number of life companies that would lend but there would be interest from a handful if the property is stable and in good condition.Freddie Mac also has a small balance program $1-$7.5M that would also be a good resource. 

I dont have to provide any accounting although tenants tried to tell me how to allocate the repairs.

Most investors that are securing such properties are leveraging  their business and resources to acquire off market deals, and are going direct to seller.