That is the only way to ensure a meaningful appraisal can be done.

The total amount owed to the tax man was half of that, only for one year, taxes are high on commercial properties, yes there is more to the story, but the main points are those, the property place on collateral is another one, the reason for not going to the bank is not because bad relation, quite the opposite, the problem is the credit limit of this person is maxed out, Canada is a lot more extract in credit lending and rating than the USA.    

Need more detail regarding expenses and financing to give a meaningful answer.

The only problem is that he does not own any of these properties, except for a deli and a small strip center which does not generate any meaningful amount of rent.

My current plan is to extract down payment money from my 401k.

@Romina Hernandez, we need more than that 1 line to provide meaningful guidance.Are you saying the house does not have a mortgage or that you do not want a mortgage?

@Bradley Morrill another way to get a tax delinquent list is if the information is available on the county website you could hire a virtual assistant to extract the data and put it in to a spreadsheet for you.  

I have a programmer friend who created a script for me to extract 55,000+ properties my spreadsheet....

My concern is since I don't have HELOC setup yet and am planning to get the 80% loan in 4 months, would opening the HELOC now lower my credit score meaningfully to make the loan more costly ?

I have not been able to realize any meaningful profit on the arrangement.