As we know vacancy rate is directly linked to the price (unless the property has a problem or is in the middle of nowhere).

Then you can open self directed IRA / 401K to invest but that will require more down payment and different tax rule.

Yea, dealt directly with the seller.

I am also assuming that I should avoid the self-directed IRA route, since I am counting on sweat-equity to add value to this property.

If you’re looking to wholesale, go direct to sellers, this market is too competitive to build a business on wholesaling through a single agent.

We also do monthly direct deposit, though I am finding we are a rarity.

For example, if, in an 18 hour waking period, you spend 2 hours snooping through the AirBNB, writing down the makes and models of appliances, figuring out the distribution of the mini shampoos and inventorying how many cooking supplies your hosts are providing and the thread count of the sheets, then an auditor might allow you to take 10% of your total trip expenses as a deduction.If, however, in an 18 hour waking period, you spend 6-8 hours per day interviewing Hosts, researching which properties would make good AirBNBs, researching the local laws, touring properties, meeting with an agent and vigorously pursuing your next acquisition, you'd have a MUCH better case for writing off your travel expenses (but probably not your lift tickets and equipment rental).If, on the other hand, you are traveling and on vacation and just hang out in your AirBNB without actually performing any activities, then the odds that an auditor will allow any deduction at all is pretty minimal.In any audit, it would be up to you to document the business purpose of your trip.  

I want to establish a self-directed Solo 401K (not Roth).

Pay off current mortgage, save frivolously, seek other purchases, etc.I'm looking for some advice and direction from some similar experiences here within the BP community.

I've heard of people having the funds within a day or two of applying.The loan is direct deposited into your checking account and can be used pretty much however you see fit.