My recommendation is look at the comps yourself and be as realistic as possible. 

What recommendations do you have for insurance on a triplex that's paid off in Miami, FL?

Based on my calculations and preliminary research, I have found that the Bay Area offers good returns from developing land, although acquiring level land and obtaining permits can be challenging.I have a few questions:1) Is it recommended to purchase a complete house plan from online sources like ePlans or similar websites and then customize the architectural design before submitting it to the municipality?

I would recommend just checking out all the different tabs at the top of your screen, networking as much as possible, and reading the BP audiobooks when you're driving. 

I'd really prefer to hear from those that have gone through a similar process as me and get recommendations for lenders to look into?

If you're considering turnkey then I highly recommend @Zach Lemaster at Rent to Retirement.

Can anyone recommend an investor-friendly agent that can help with the legwork in identifying a property etc?

As an investor with over 20 years of experience in Tampa Bay, I highly recommend looking into Tampa for long-term buy-and-hold rentals.

What's team,Looking for advice on where  to start, or some actionable steps I can take to begin doing what I need to do to be able to GP a larger multifamily deal in about 2 years. For a little background, I have some...

I always recommend that anyone getting started attend in person meet ups.