I'm trying to figure out if I should host my GC license under my LLC that is conducting the BRRRRs or under another LLC entirely. 

WST is a sole member of Domestic AZ LLC which holds the rental title and conducts rental transactionsAppreciate your thought.

Until I have a separate entity set up, I cannot conduct these transactions in the entity's name.

Their conduct can easily be tortuous conduct, getting sued, fined for license violations, banned from RE dealings, and, if they don't have the means to carry out the contract, some might say fraud. 

While conducting your deed search scan the records for property buyers and sellers who conduct several transactions per month.

In the future I will be conducting a more thorough screening.

While states may not require an Operating Agreement, Minutes or meetings, if you do not make your LLC walk the walk, in other words and clearly stated, does not conduct its business in a manner consistant with the corporate structure that makes the liability protection possible, then it will not provide such protection when it is required!

There is nothing more important than how you conduct yourself and your business.

Either the appropriate court is petitioned and agrees to issue a temporary restraining order, in which the lender is restrained from conducting the foreclosure sale until a full hearing can be arranged in front of the court.

We're a small shop and typically conduct 20-40 fix and flip projects per year, all at various stages of rehab and each coming with their own set of potential issues.