It is somewhat complex to try to explain on a forum, but at a high level, you (aka GP) and your family member (aka LP) would agree on how much the 2 of you would put in for the amount of equity needed (usually expressed as a %).

3) What neighborhoods would you recommend in this price range if I'm targeting high quality tenants?

One of their so called instructors from one of the training sessions asks the students to go to the five star hotels, or go play golf, or go horse riding, or go hang out at the high end night clubs for the sake of fund raising.

Most of these folks don't want to lose their voucher.Additional issue, when rent is too high, it slows down leasing. 

If you have a credit card with a high limit or a line of credit on the existing duplex that might give you some wiggle room.

I am a highly motivated individual, however, and I'm dedicated to getting into real estate investing.  

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

That’s one of the highest growth forecasts in the country while still maintaining strong rent-to-price ratios.Memphis also has a resilient economy, driven by logistics (FedEx), healthcare, and a high percentage of renters.

As with PCS their tax company is highly unresponsive, I filed over a month ago with no response, until I reached out for an update and they then requested more info from me.

And you get feedback at a level high enough to determine how to proceed.