Even still, you will want to get the process started soon.And stop offering this bogus tenant money!!

Gonna stop the questionnaire here before we loose all the readers.

I also borrowed 80% of the purchase price from this local lender.

You are too close to sale to stop it unless you find a cash buyer for full payoff, and I don't know of any investor that would be rushing to the bank to cash in an IRA to pay market value for a property.His credit is already shot.

(House-A)I want to buy another (House-B), and then sell House-A.My lender has pre-approved me or a mortgage for another house (House-B), without requiring me to sell my current house, (House-A)I want to do a BRRR and buy House-B with hard money , renovate and then utilize the mortgage to lower the interest rate and pull out most of the initial investment.If I borrow from the hard money lender, will that reduce my borrowing power for the new mortgage?

Some has to do with you as a borrower too, I'm a strong borrower due to another business I have.

We also have one buyer in escrow with Zillow (One of their previously purchased homes before they stopped buying.)

Does that mean I can buy a 4plex and live in one of the units or 4 single family units in total per borrower?

I would say stop wasting your time chasing those county programs which are turned on and off like a water faucet and concentrate on making money with buyers who have 3% to put down.Or, sell them on a 100% USDA loan and get them to move out of the city limits, buy more house for the money and their kids can have a pony!  

Or in other words if your ROI is higher than the amount you borrowed (Borrow at 5% to make a 10% ROI) your net worth will always be bigger in the end.However, If you are in need of cashflow now, then constantly leveraging is going to kick the 'cash flow' can down the road even further and may work against your goals.Also leverage only works if you are actually getting the returns you need so it is higher risk.