You clearly have a ton of experience and a depth of knowledge, but be sure to check out the podcasts as well as browse the forums.

The property I was just browsing is: https://www.redfin.com/IL/Chic... 

https://www.vivian.com/browse-...

Continue to post on these forums and browse them to gain some general knowledge and pick out things you want to dive into and get more info on and maybe reach out to someone who seems to have a good bit of experience on that particular subject. 

Have been on the browse for the right deal for me to dive into my first flip.

Analyzing the sale prices of these comps will give you an idea of the potential selling price for your property.Online Real Estate Listings: Browse online platforms such as real estate websites, property listing portals, and MLS (Multiple Listing Service) to research the current asking prices of similar properties in the area.

Or just browsing Zillow?

I've been reading RE books, browsing through BP, and listening to RE investment podcasts for a while now.

The bigger investments I am browsing are also in the same cap rate range of 6-7%.

How much work goes into each of those returns to prepare them is directly related to their fees.Other CPA's may offer somewhat of a package deal for all of the returns depending on the workload.I would suggest browsing around and discussing with other CPA's to see what their fees tend to be after discussing in detail regarding your returns.