If you're interested in seeing how that all breaks down from an income and expense standpoint, I created this Sankey diagram to share with you:As for me, I'm planning to leave my w-2 job and take a little career break before deciding what's next for me. 

Quote from @Bob Avery: I don't recommend leaving a space blank because someone could later attempt to add something in.

Hmm, what didn't you leave out?

However, leaving them where they are I feel like I'm missing out on bookings. 

Use your HELOC to purchase the duplex outright for $118K.Your brother’s $50K down payment can immediately go toward reducing your HELOC balance, leaving a remaining balance of $68K.Create a formal lease-to-own agreement with your brother.

Currently have a duplex I’ve been in 3 yearsMortgage 3.65% pmt $850Tenant pays $875Heloc $30k——monthly $291The issue I am running into isRates are so high right now and it’s a lot harder to find another that will cover full mortgage.Does it make sense to leave somewhere that it is full covered to go to one that is not?

you cannot realistically buy real estate when you have no personal funds.but what you can do is work to put a partnership together where you find a money partner and you guys do a JV  money partner you do the work.. this can happen if you find someone who takes a shine to you and wants to help U

If they refuse to leave, the owner can call the police and have them escorted out.  

I also advertise before someone moves out to get a new tenant before the current one leaves. 100% occupancy on a LTR is very common for me.No idea on a MTR.

If they are leaving mid-Feb and willing to pay 6 weeks' rent to break the lease, that is reasonable.