They claim that their clients are seeing a large return on their investment but would love to hear from somoene who has actually worked with them. 

This post does not create an attorney-client or CPA-client relationship.

This is more than enough to do PML's whether you originate or purchase from a broker is up to you.

I own property and do interior design for rental and investment properties so I stay up to date from my clients and local events I attend through RE associations and meetups which I recommend.

Unless you have a clause in the purchase of the entity that clearly makes you responsible for the entity from the day that you buy it(Indemnification) I wouldn't bother with the LLC.Good luck man. all the best!

Especially #4 about durability.Do you charge your clients a flat fee based on size/price per sqft for your services, or % of spend?  

On the other hand, with an appraisal near the purchase price, that should be enough in this case.

.- When handling insurance on previous subto, we purchased new insurance, canceled the old insurance which was part of escrow.

My last purchase (built 1900) has no closets.

That's what separates the best real estate agents who represent investor/developer clients.