CONTEXT-(30k in credit card debt, split between 4 cards, mostly in charged off status)
(one vehicle loan that was charged off, is now caught up to current, not paid off, 50k original loan amount)
(some card companie...

Which site is the most accurate to estimate the fair value of the house based on your experience? 

It is now a very complicated and involved process to appear in the top 10 of any kind of Google search.You could spend tens of thousands of dollars to achieve this goal.

Will a good concrete company have access to the necessary equipment to grade and dig to prep the site or is it customary to have to rent that equipment for the concrete work to be done?

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

I found great success using this comparison site to find affordable flooring installation.

Unfortunately, it’s not always clear on the Sheriff’s Sales sites that these sales do not in fact change title until the day of redemption is over.

Use sites like Zillow, Redfin, and Realtor.com to check out markets.

To grab your first property, mix with local groups who invest in real estate, talk to property agents, use online sites, send out direct mail, scout for places by driving around, and get in touch with people who sell deals.

*One quirk that made financing more complicated: the banks got nervous when they saw that just two people (the investors I mentioned earlier) own more than half of the 48 units, and wanted a big down payment.