In 30+ years we've been sued 1x (legal blackmail over a tenant's drunken trip/fall) which the insurance company settled for $1,500.00).We've been using some privacy tactics to keep our names off the county recorder and the target off our backs.Further, we review our insurance coverage and premium annually, just to keep on top of any changes.As with all insurance, it seems to be a waste of money... until you NEED it!

I recommend you speak with a lender about reviewing whether you could qualify for a loan prior to making an offer, as I've seen these kinds of things blow up.

Once I get the homeowner to sign the assignment,  do you want to be the first option to review the numbers and possibly buy ?

Each note is reviewed individually and most note buyers will provide quotes once the transaction has closed, recorded, and the first payment made. 

“Does anyone know of a website or resource that reviews Real Estate Syndication sponsors or offerings?

Instead of debates and personal opinion, look for proof https://www.ladbs.org/docs/default-source/forms/plan-check-2017/single-family-dwelling-duplex-plan-review-list.pdf under G (Interior Env) which defines the minimum requirement of a habitable room (aka bedroom or bathroom).

With your costs being less you can invest more into the property to build reviews and get bookings. 

As everybody else stated review your basic protection with P&C and umbrella coverage and run your rentals like a business, easier said than done.   

If you're going to do it alone, make sure you your due diligence: estoppels, inspection, review, consult with a local attorney familiar with the local regulations, etc. and good luck.

It would be good to talk to a lender to make a game plan and review your financials.