I have been a RE Broker since 1975  I have taken listings anywhere from 25% commissions down to 1%  and I brokered 20 duplexs a few years ago where the builder was in Trouble these sold for 230k each and I charged flat fee of 30k each..

The resources are abundant - spreadsheets, contracts, tangible items to help you succeed.

The comparable is house a few doors down in Uptown Harrisburg- N 4th St. that sold 1/31/35 for $97k.

Lived in it and sold it a few years later.

I have sold many seller's on the benefits of seller financing and negotiated on buyer's behalf as well. 

I previously owned rental property but sold them and am now looking to get back into real estate investing.

This is day to day spending, rent collection, tax/utility payments etc. (1) account for all security deposits, (1) account for parachute fund, capex items etc.

My wife and I have been talking about doing something like this = rental properties, flipping, house hacking, etc. for some time and after we sold our house towards the end of last year (made a good profit) are finally in a position to pursue it.I am super-focused and excited on wanting to learn as much as I can and start this journey to financial freedom.

My understanding is that you can sell assets and defer capital gaines taxes in an opportunity zone until the property is sold.

You want to look for like/kind SOLD properties to compare so, single family to single family and multi to multi (2-4).