There is another way to see the listing prices history if I can't see it on those webs?

Online Auction Sites - Realauction.com, LLCYes you're right, but it's not the only one, there are other platforms depending of the state and the tax lien type (e.g. redeemable has a specific platform), some county has his own system, finally, the main difficulty is to be updated on all upcoming auctions and retrieve the lists to do the research.There are no other platforms for the counties appearing on the Realauction web site. 

As you may know, Podio is web-based which allows custom apps which can be automated by talking to your other web-based applications via Zapier.

.#1 mistake is not using the right advertising websites correctly.So, ask your agent for a list of websites they are advertising your properties on.May also help if you post JUST the address here - we should be able to do a web search and find it - or there's an obvious advertising problem!

Does anyone have any recommendations, or even better any spreadsheets, excel or web-based, they use to keep track of all construction expenses for Flip/BRRRR properties? 

Be more discreet and search the web first.The goal is to help you get better answers and less pitches.

I have a proof of concept web page and can provide a personal story and touch.

I probably need to look for a less demanding W2 so I can enjoy the next ~5 years and have a little more time to devote to RE to determine if it's right for us, while still making a good income in case it's not.

It might be different if others were involved.Consider an umbrella insurance policy instead of the web of LLCs and corps.

I'm just not devoting enough time to getting everything rolling.