The leased space has this shop and a small parking lot, which can include a maximum of 3 small cars!

Then the parking wars started. 

The NN leases could just be roof with a warranty transferable to buyer or it could be roof structure, utility lines, parking lot, etc.You mentioned a national dental chain.

There was a murder in the house 5 years ago and the backyard is against a funky motel and mobile home park that is getting cleaned up.

If you get an out of the park deal someone WILL partner with you.

I had first heard about cesspools in Mobile Home Parks and heard in that arena to never buy a place with one, but I imagine it is different with the scale of many homes vs a single home. 

New hi-rise condos have popped up, North Park has been declared an Opportunity Zone by the city, and even the VA recently bumped up their loan amounts in SD county, so now veterans are absorbing a portion of the market as well.It seems you have a 5-7 buy-hold plan.

Then you join a local REIA and hand out business cards.What states are you wanting to lend in and what ball park range of loans do you want to do? 

Here is the property:https://www.zillow.com/homedet...It is located in Garfield Park which is just outside the city, an I area I feel could be up and coming.

But again, it all depends on where you want to park your capital.