"Beefy" Operating Agreements are generally needed if your entity has non-married partners or if you are using an LLC as a wealth transfer mechanism.

We recommend removing mechanicals until tenant MoveIn.

Car mechanics, HVAC, you get the idea. 

What downpayment or financing mechanism will you use?  

Efficiencies of scale, debt mechanisms, etc., will tell you to operate differently.

If you worked with a quality firm, they should be able to assist you with questions about the mechanics of moving funds around.The bottom line is that if all accounts are held in the name of the LLC and associated with the LLC tax ID, they are interchangeable - kind of like different drawers in the same desk.If the relationship with Stessa is in the name of the IRA owned LLC, you should be fine. 

The $15,000 is a filtering mechanism.

If this was a huge dump of a home that was built in 1890 and needed completely new mechanicals (electrical and plumbing) then I would actually consider it and exchange it for a home that is newer (modern layout, newer mechanicals)good luck

All I have done is started using the HELOC to pay off chunks of the mortgage like I explained and because of all the various mechanisms I described I've been able to put a ton of extra money toward the mortgage.

If you have it fully renovated, including mechanicals, roof, etc.