U know like banks that have long lost accounts.. escrow money that is refunded and cant find the borrower ( this happened to me personally LOL)  those funds go to the transportation department at the state.. so who could figure that out with out a little digging. 

If you want to do postcards, DealMachine has a way that you can send post cards directly from the app/site.

Second, I'd like to manage each property to make some cash flow to cover my 2 biggest expenses which is housing (covered by house hacking) and transportation.

Do you have consumer debt (car notes, credit cards, etc.)?

Property SelectionFocus on Neighborhoods: When searching for properties, prioritize neighborhoods with good schools, amenities, and access to public transportation.

WEBSITES that offer pick dresses have pink dress content on it and Google crawlers catalog all websites on Google so Google can retrieve them when someone looks for them.If you build a website where you tell everyone (Google included) that you buy Duplexes, anyone who has a duplex to sell will find your website, if you are decent at SEO and that is how you find Dumplexes with a website.You can have your website target anything you want.Lastly, I always find it funny when people pull that $7K card on me.

Do, you have any other higher interest debts for example a credit card?

@Adolphus Fletcher - If you're main goal is to build business credit there are different avenues to do so including: obtaining and unsecured line of credit for the business, applying for a business credit card, applying for business accounts such as Home Depot/Lowes, etc...

I'd attack the credit report :) 1) lower (pay down) whatever accounts have a high utilization percentage 2) contact each of 3 major consumer credit agencies and get a free report, then dispute every hard inquiry that is *NOT* associated with an open account 3) call the credit cards you already have established and ask for a credit line increase -- often can be done online and they do not verify income, hint hint. 

They use credit cards for emergencies (Yeah, right..)