Each deal is different of course.

A partnership vs. disregarded LLC warrants consideration- you face different reporting requirements, limitations, etc. 

Oh yea major price differences....I'd imagine It'd fetch around $3.5M if I were to try and sell what i've got.

Is a different town from where i have the other properties.

Find a good lawyer you can make a relationship with to have in your back pocket should you need to sue, use strong contracts, use work tracking apps like busybusy, always have a couple of different contractors on speed dial so you can fire them and replace them immediately. you've got to be bullish, have strong goals in mind.

Post the listing, Any local investor would be  able to tell you if you were fleeced in the acquisition, Birmingham is notorious for being different street to street. 500k houses one street over from 100k houses.

Duplex have different zoning that may permit additional units.

It might be payment notices are going to a different address and it is simply overlooked. 

Since your property has high resale potential, some lenders may be willing to work with you.Cash-Out Refinance – If you’re open to refinancing, you could take out a new mortgage for a portion of the home’s value (say, 60-70% of the $500K), and use the cash difference for renovations.Personal Loan – If you have good credit, you might qualify for a personal loan for part of the rehab costs, though interest rates are typically higher than secured loans.Partner with an Investor – Given the potential profit, you may be able to find a real estate investor or contractor willing to finance the rehab in exchange for a share of the profits upon sale.Your best option depends on your financial standing, timeline, and risk tolerance.

My CPA was unsure... do you issue 1090-NEC for the difference between 1099-K and 1099-MISC or do you double up the income (i.e. 1099-NEC for gross rents from PM, 1099-K of the net owner distribution on 1099-K, then owner reports double income and puts a line item expense for the 1099-K since 1099-MISC covers gross rents).You need a new accountant lolPM issues 1099-MISC, not NEC for rental income paid to property owners.You would still issue the rental income paid to the owners regardless of the payment method.The Property Owners should add an expense line item on Schedule C stating that income reported twice on Form 1099 to offset any duplicated amount.