Most national or mainstream mortgage lenders do not offer Super Jumbo mortgage loans (typically above $1.5-$2.5M) Although Super Jumbo Loan Lenders can provide loan amounts from $3M-30M+The majority of these buyers obtain their mortgage recommendation through their real estate professional or frequently through their existing private or premium banking relationship. 

I'd like to echo Brian's idea on considering hard money lending as potential strategy.Hard money lending can offer similar to even higher returns compared to traditional real estate investments, often ranging from 8-15%, providing the cash you're looking for even in A/B areas.

It’s great for getting an idea of what similar properties are going for in your area.Zillow Rental Manager: Not only can you list and manage your rental property here, but it also offers rental price estimates based on local market data.AirDNA: While primarily focused on short-term rentals, AirDNA offers data that can help you set prices for medium-term rentals by providing insights into occupancy rates and revenue projections.PriceLabs: This dynamic pricing tool adjusts rental rates based on demand, seasonality, and local events.

I know a guy who does this, Maybe he can offer insight 

Depending on your market buying a duplex might be feasible but many down payment assistance programs do not offer credit for multi-families. 

Make sure to talk with a lawyer!

If you plan to invest somewhere else, who is the top agent for investments in the area that could point you to a good mentor, or offer mentorship themselves?

Just say so - but don’t refer me to a lawyer for $500 an hour.

Even if you take a loss on your investment by getting out, it's probably better to part on good terms than having to lawyer-up.  

His lawyer simply said "his father can take steps to "foreclose" on his interest in the property."