Spend lots of time here.

If I do want to move forward, how should I structure a contract to provide me maximum contingency options and protections?

If you don't have time or don't want to spend energy driving for dollars, it's better to work with wholesalers.

Spend the next 5-7 years doing this till you have four multi families, then re-finance all 4 multi families into one LLC and one loan.

Discrimination is about wronging protected groups and minorities.

I have not encountered any language stating “inland marine property”.I would rather spend the 600$ and be safe than risk it just to save a few dollars. 

This is why I have chosen to be an REI, to become financially free, so I can make better use of the time I have to spend with family and friends, a better future for my children, and a better environment for people who do don't have.  

You can pay a contractor-friend (attend one of your local meetup and make contractor friends, if you don't have any) a flat fee and have him/her spend an hour or two doing some estimates with you.

All of these determine the premium, in addition to other factors like the Construction, Occupancy, Protection and other Exposures.  

I spend about 30 min to an hour everyday reading forms on here just to expand my mind, not including podcast.