However, as this WSJ article points out, falling interest rates won’t solve all the problems faced by many buyers in current market conditions.What if I’m a buyer?

There can be many reasons for failure, and there can be many situations where investors perceive that a failure has occurred when there has not been a failure.I wrote an article for the BiggerPockets blog last week that talked about failures in the context of syndication sponsors that have turned non-responsive...perhaps that's a help. 

They would be very helpful when discussing if you can benefit from cost segregation as it's a case-by-case basis.Here's an article with additional FAQs on cost segregation studies that you may find helpful.

“Business equity line of credit: Use Real Estate as Equity” up to $500k, interest only. gather your business and personal tax returns, financial statements, articles of incorporation and other legal documents.”Vectra Bank - ColoVeritex, TX HELOCWebster Bank, CT, RIWAFD Bank.

What towns are popular and attract guests? 

There is no set time for the county to foreclose on the property via a tax sale, according to this article purchasers of the tax lien certificate have to wait 5 years, as the owner has a redemption period after the tax sale, so you could be waiting a while, and if I'm not mistaken, you have to pay the taxes each year until the 5 year period is over, then you have to file for a deed or file a lawsuit to quiet title.https://smartasset.com/mortgage/how-to-buy-tax-liens-in-cali...Hope this helps,Dustin

None of this speaks well for owning property in an IRA.While trying to find related examples, I found another argument I would have certainly lost regarding accounting for a checkbook controlled IRA LLC: “Providing un-tracked accounting services for your own IRA LLC can result in a both an excess contribution and a prohibited transaction.”http://www.prweb.com/releases/2011/02/prweb4300264.htmAccording to the article, “Although there are some exemptions for services provided to a retirement investment plan, they do not extend to services provided to entities owned by the plan.”I guess you guys are right.

How popular are REO properties? 

Thanks Check out this article on BP published on this exact topic - the "5-10 Unit Multifamily Niche" has some very specific financing options - including, the Multifamily "DSCR Loans" that @Brian Cauldwell mentioned - these look like SFR loans (no tax returns, 30-year fixed, Rent/PITIA to calc DSCR etc.) but are for slightly bigger propertieshttps://www.biggerpockets.com/blog/multifamily-dscr-loans

Business lines of credit in my experience will often be high doc, so you need to have your articles of organization, the EIN number from the IRS, any other mbr/managers may have to be signatory to the debt (vs non-PG), and depending on the bank, they often want to see business tax returns.