My father wants to use his SDIRA to provide a loan to the LLC him and I are equal partners in.The loan would provide the additional funds we require to purchase an investment property.The LLC would pay principle and interest at market rate to the SDIRA.Would this be considered a disqualified transaction? 

Conversely, refinancing preserves your current positive cash flow and requires less hands-on work, but you may not secure the same low interest rate and could diminish the equity available for your next house hack.

Are you looking at buying/building a private strip and expanding the hangar capacity or would this be an off airport storage requiring wing removal and towing?

Buyers will be required to sign a buyer agreement prior to showings, many states operate this way already, and it can be specific to a period of time, specific property or range of shopping options the broker is to assist with. - Buyer broker commissions will be more transparent and in all likelihood begin to trend downwards.

It is also very big and requires constant reno/repairs.My tax returns are laugh worthy to conventional lenders and I have 2 other properties so my debt to income ratio looks ridiculous to the average underwriter... but the cash flow is definitely there. 

Is there any special requirement to do it in this state?

It's not worth the 1/2 hour  to hour trip (one way)  to go look at a potential deal, then crunching numbers, then spend another hour on all the paperwork required to submit an offer in writing on a MLS deal. 

It is also very big and requires constant reno/repairs.My tax returns are laugh worthy to conventional lenders and I have 2 other properties so my debt to income ratio looks ridiculous to the average underwriter... but the cash flow is definitely there.

However, navigating the existing mortgage and structuring a deal that aligns with your rental income might require some creative solutions.

It may not be required to send your kid.