Since the note itself is not public record, the only people who will know you own the property will be the trustee (ie a bank or Chicago Title Land Trust), your attorney, and the mortgage holder.

You really have only two options.1 - You have public sewer that you can connect to.

My main question is - is this going to make obtaining new loans a hassle? 

In some states you can find via public records the owners of an LLC. 

I would like to obtain some information or recommendations for new wholesalers.

People still fall behind on taxes every day and that can cause negative equity situations as well and can be found if the state you are looking into has public tax lien certificates or even just posts the delinquent properties online.

of FSBO, door knocking, so far I have been close to obtaining an accepted offer via seller financing but have failed each time.

Public utilities are not available at this property. 

Not to mention you'll also obtain the property at discount given commission received.

Zillow and Apartments (CoStar Group) are both publicly traded.