If this is the home you're going to live in -- then I'd suggest you start with where YOU want to live first.

My question is should I have a contractor review the property/or send photos and videos to get a more accurate number on renovation cost and then afterwards take that to the seller and negotiate?

I really enjoy the property manager, they’re getting 4.9 reviews for it and their team is great to work with.

Can someone refer a good lawyer in California to write/review a Tenancy-in Common Agreement?  

However, it is important to review state and local laws regarding landlord-tenant relationships, as restrictions may apply in certain jurisdictions.

My wife suggested an every-week payment plan of 250.00 a week to catch up.

Before purchasing, review the lease for any limitations and align rent with your investment strategy.

I am trying to weigh all of my options, any advice or suggestions would be greatly appreciated for beginning my real estate investment path!

Strongly suggest multi family home as your primary home. 3.5% down FHA up to 4 units, 5% down conventional as a primary. 

REIA meetings and events are a great place to meet individuals with experience in the local market so yes, I highly suggest that you join them specially since your learning REI.