If you're flipping it, then I guess you're renting it...for now.Rental values are primarily based on cash flow, with the equity important when you want to access it...such as sell it or refinance.  

Are there any Tulsa, OK agents or investors who have access to the local MLS and may be willing to pull some comps for me on a property (and give me any thoughts if they happen to know the specific area)?

I actually am not entirely sure how to figure the value without having access to the MLS and getting real comps.

To date, 13 States have passed their own crowdfunding regulations that allow non-accredited investors access to crowdfunding investments.

With that being said, since we have had access all along, is there some legal ground we can stand on to keep it?

I have mine.Pros- Access to MLS and being able to see a property yourself without having to synch to someone else's schedule.

My first thought was to pay off one of the houses and open a HELOC to have access to the cash should I need it (buy next house in cash using LOC and additional saved cash)).  

If repairs can be done for .25 and all your holding closing and selling costs come in at .25 seems like purchase price of 1.5 doesnt matter as long as you have access to the cash. 

You'll want to make sure you have MLS access (realtor.com or via a local realtor -- ideally both) as zillow's MLS info is often innacurate or outdated.Also check the REO sites directly (auction.com, hubzu, homepath, hudhomsetore, hudsonandmarshall, etc) as not all of their properties end up on the MLS or zillow.

There are other reasons to sell off one's holdings ... perhaps retirement.As you alluded, privacy laws in Canada make it far more difficult to acquire or create a list of landlords from tax or property records.You still may be able to access estate information in l'inventaire après décès (literally: inventory of the estates of deceased persons).