How do you navigate the wholesale transaction when buyer is wanting to use traditional financing?

I have used both Traditional (pre-tax) funds, Roth and HSA.

Global warming now is the nudge for a lot of fires, hurricanes, etc. it will soon be accepted as the primary cause.

Primary Homes - most banks will easily do 80% of the value of your home, some will go up to 89.9% loan to value (LTV). 

.- The 203(k) will allow you to bid on properties that need repairs that won't qualify for a traditional mortgage => less competition => better purchase price.You will need to find a great local contractor you can trust to supply the required bids to qualify for the 203(k).- After closing, you can do some of the work yourself to save money, but the program doesn't allow you to pay yourself.You will want to buy a Class B property, maybe Class C+, in an area that seems to be improving.

Once your primary liability insurance is exhausted, your 3M umbrella would kick in. 

At this point I was still doing nationwide Google Ads as my primary source of marketing.

In many/most BRRRRs that is irrelevant because when the property is bought it is often not fanciable using traditional mortgages.

We have HELOC money available from our primary and one of our rentals at about this same rate, so that could be a backup plan.

Most would agree that taking money from you primary residence is not a good idea at all.