This remodel included all new plumbing, a complete bathroom gut, all new flooring, exposing the brick fireplace, all new appliances, paint inside and out, etc.

A lot of the major components are brand new including roof, siding, furnaces, A/C, flooring.

I am also including the taxes and insurance while running the numbers.

I'm anxious about making any financial mistakes that will cause me to be in hot water with the government since I am not sure how to report income from an investment property. 

Common fees will include a set-up fee, a leasing fee for each turnover or a lease renewal fee, marking up maintenance, retaining late fees, and more.

With us, if vested in an LLC it will not be reported to credit.

Understanding the nuances of the "A to B, B to C" close, the contracts including assignments, what types of financing one can get for each property, etc.

It's a split level that I bought in original condition, including a 1984 ancient-looking air conditioner and all the things that come with a house of this nature.The plan was to do a full cosmetic + replace HVAC and Roof + prune back 60ft tall pine trees AND turn it into a house hack bnb.What I've learned so far....- Trust but VERIFY everything on the buy side.

Some of those include Liability. 

As far as negotiating furniture, I would include “furnishings negotiable” or “comes furnished” in a contract.