If there are no 3rd parties, there are alternate methods.

It strikes me as something a motivated seller would take on, an alternative to wholesale.  

We have Multiple Private Market alternatives and the results have been impressive.

@Evan GriffinBanks loans for BRRRR are doable if you find a deal that the bank will lend on.If they wont do the deal then the next step is a bridge loan or hard money loan or cash.The refinance is the key to the BRRR method.You need to work with a lender that does not have seasoning requirements.Banks are out of the question for this because they require you to own the property for at least 12 months before giving you cashout based on the appraised value after rehab.An alternative lender does not have seasoning can get you 75-80% of the LTV after rehab.

Alternatively, you could be a multi-unit (up to 4 due to lending reasons), live in one and rent out the others.

The CFPB rule removes the requirement to be considered for foreclosure alternatives (Short sale, etc.) inside of 45 days from the date of sale.

If this date is not suitable, then he should reply to the letter and present an alternate date.

Alternative asset capable IRA plans are a very specialty niche and are served by specialty players. 

@Clark Kirkpatrick gives some great insight about the 203k loan and some good alternatives.

As an alternative, for example, I could invest in an insured muni bond (tax-free) with a 4% annualized yield and take on virtually no risk since it is insured.