What's the best way to tap that equity without drastically increasing my borrowing costs?

If it's fairly simple and inexpensive then I would do it, when you get ready to close.  

Your Financial Goals are as simple as generating two very basic sets of number...dollars really:1)  Make enough Profit (lump sum returns) to Pay Off your personal debt...ALL of it.2)  Get enough CashFlow to "cover" your monthly bills...ALL of them...and to replace your current method of doing so.The overall Plan, is comprised of a series of Measureable Milestones made up of groups  of the individual Financial Goals (Debt Payoff, Cash Flow)...all lined up in a row.  

Rent must keep pace with equity growth (appreciation) otherwise the investor is increasing their risk. 

I also love YNAB for personal budgeting and use it religiously (knowing your income/expenses to the penny is key to profitable money management), so for the past few months I've increased my savings by pretending I'm carrying a note on a BRRRR and paying money into an account as if I'm in the middle of a 6 month rehab phase.I recommend that if you haven't laid out a business plan yet, grab a pen and paper and start mapping out your goals and how you'll get there. 

We also saw a avoidance of wood frame homes due to the fear of them being weaker in storms, accurate or not fear is a strong factor.We also saw a boost to the market as a whole with the increase in spending and increase in work from insurance claims.

Good site to double check for rent controlled areas is ZIMAS.Obviously, the tenants were not happy about the increase in rent.

People twist off every day and living next to someone who is so tightly wound only increases your odds of being one of those hit by shrapnel when it happens.

Increased ARV tremendously. 

A simple jv agreement would be cleaner.