This would satisfy your retirement desire. 

Hope all that makes sense. 2) LLC-B contributes $5875 towards retirement --> tax deduction what type of contribution is this?

Bought a triplex in 2011 with all cash in my retirement account.

Fast forward 20 years: I now have money in the bank, excellent credit, live modestly on my own, and run a business that’s doing well.Unfortunately, I wasn’t able to save much for retirement during most of my life.

Starting in your 30's is in some cases better in that you are more mature and disciplined about saving and settled. 

If the answer is yes, then it's a no brainer to make minimum payments on your 2.8% interest rate mortgage, and use the funds that you would have paid extra to pay it down faster, to either invest in more real estate, the market, or anywhere else where you can get a ROI > 2.8%.If the answer is no, then feel free to aggressively pay it down as fast as possible, to become debt-free faster, and just have a large amount of money in savings or to splurge with.The bottom line is that your 2.8% mortgage is GOOD debt.

I recommend two accounts: checking and savings.

I have had my butt saved many times by attorneys and I am grateful for that.

Quote from @Charles Fay: Hello all, first time posting and wanted to ask for your advice.currently in the military awaiting a 9-12 deployment within the next 6 months.I will have ~150k savings after deployment, 85k before, with no debt, payments or anything other than basic bills, 750+ credit.

Her income now is SS of around $2400 and a basic 40hr office job that pays all of $17/hr, but she is retiring with this move.