@Todd Solberg - I don't have much experience with MF new construction, but I highly doubt you'd avoid capital gains in on the second duplex in this scenario, or that you'd secure owner-occupant financing.

I doubt anyone can just give you an full analysis on the Sacramento market without knowing what your goals or intentions are.

.- Once you find a deal with a number that works , Find Investors, connect with your local banks , partner with someone . ( I strongly recommend the book - Investing in Real Estate with low or no money down by BT)- Be consistent- Read Blogs, Read books, read posts- Attend Network events- Connect with one member a day with a purpose(Please: do not spam members , you may loose your messaging privilege).I doubt you will fail if you ritually follow 70% of the recommendations.

I doubt it's a qualified opportunity zone. 

Trust in yourself, and trust in your plan without any doubts.  

It is doubtful that anyone would even be able to tell. 

I doubt you can get the residents to pay rent at Walmart -- and in some states you can't require any form of rent collection that is not on-property.To form your decision I would 1) talk to your state mobile home association (MHA) and get the laws 2) consider the following the options A) pay check or money order to the manager B) mail the rent in to your P.O, Box.

It’s doubtful that you’ll be asked to tell your story as the opening act at some high priced real estate training event. 

In this case, though, given that the seller is in default, I doubt he/she has a few gran lying around.Best of luck!

But you, no doubt are mature to the point you're ready to build wealth.