Hi Calvin, if is it listed with anyone, it may have a similar address and a realtor posted your address by mistake,This happened to me a few months ago whereby I own a condo in a community that has 3 building and I own A6, but they were trying to list C6 and only added 6 to the MLS listing lol.

Are there any common mistakes new investors make when working with brokers, lenders, or contractors?

If you're only doing a couple or so transactions per year probably ok.On the other hand, you can have more control and eliminate the need to go through a custodian for investments by the use of checkbook IRA or Solo 401k.

The biggest mistake a first-time investor makes is never buying. 

Eliminate debt, establish a budget, and save.

Soon I'll be purchasing my first ever investment property (Virginia) (MFH) and I honestly feel like I made a mistake.

It would be a huge mistake to pay it off.

This eliminates ALL the interest on that property, and uses the monthly payments you were making on it to help reduce the debt on the other quicker. 

By eliminating the need for outside financing, we ensured a fast, smooth transaction.

•You’ve fully paid off the mortgage, eliminating lender control.