I have all the documentation on this dispute. 

Do I need the seller to provide me with the mortgage documents and have a lawyer review?

Buyer of note does not do proper due diligence and finds they need something resigned from an owner of the note down the line and think the person they bought it from needs to get that document for them.3.

My only hurdle is the fact that I don't know the Real Estate Investing industry that well, so I don't know where or how to find the right documents for my wholesaling transactions.I've began generating pre-foreclosure leads, which I am able to filter out just ones with high equity, owner occupied, and no auction date, yet.

They're a conduit lender, so they require more documentation than a mortgage fund or private individual would request. 

@Javier MolinaA mortgage is public record so all of us can find and read your recorded documents.   

They assist investors in preparing necessary documentation, such as detailed project proposals, financial statements, and credit histories, which are crucial for persuading lenders.

Our realtor has continued to have us personally sign all the documents as they have come in (home inspection, personal property sale, etc).

I assume you are using professionally prepared loan documents, yes?

As others pointed out, this may be a situation where you want to record the inspection to document her odd behavior in case you have to defend yourself in court.