Depreciation Benefits via Leverage: While you can't claim depreciation personally on IRA-owned real estate, SDIRAs can use non-recourse loans to purchase property.

I have a feeling this is designed to maximize retention of now dislocated persons. 

Also, you don’t need a business license just to look at properties, but if you buy a bigger property, like a multi-family unit, you might need a certificate of occupancy, depending on the local rules.For business trips, most expenses can be deductible, but if it’s part personal and part business, you can only deduct the business portion.

It mostly means you don't want to deal with banks initially. 

At that point, you’re building a business plan—something you can take to the bank.

With that low interest rate, you will have paid down a lot of equity in the deal and should be able to finance with a bank.

Personally, my strategy (in the midwest) has changed over the past few years and BRRRR hasn't been the go-to approach as much.

And your bank is not requiring any sort of paydown of the mortgage for a partial release. 

Personally, I've bought older homes since I invest in mobile homes myself.

Even I can do it, and I am generally the most unhandy person on the planet!