Since you’re already licensed, the MLS can still be a great source if you set up tight search alerts for outdated or long days on market listings and move fast with strong offers.

Not to get technical, but just wanted to show the source at end. 

If you’ve built a portfolio near a university, what’s worked best in your sourcing approach, on-market, off-market, direct-to-owner, auctions?

Not only your risk is minor with wholesaling, but you 'll also benefit in the process from the following:1) Acquire essential skills of sourcing off-market deals and negotiating with sellers2) Get access to nice chunks of cash through your assignment fees3) Have an opportunity to tap in to any market throughout the US4) Build a network cash buyers and other industry professionalsAnd perhaps more.

If you have the right team, they will help you source the best deal and management for the property.

In Philly, there are still solid BRRRR pockets (West Philly, 19143/19121, parts of North Philly) if you're sourcing right.

Just reading data sheets will teach you nothing about that area.Unfortunately, I never found a source that isn't some type of shortcut grand summary. 

Contractor #1 unlicensed:  $8850 (includes above listed and staining new fence) Wood Dog Ear PicketContractor #2 unlicensed: $6000 plus $1200 for staining new fence = $7200 total (verbal quote, he's supposed to send a written quote to me)Contractor #3 licensed (a small sole proprietor): redwood fence, $9100 plus $1200 for staining = $10,300 totalContractor #4 licensed (a fence company recommended by my GC who did the renovation on that home) = $10,508 (no staining) redwood fence and getting quotes for a company that does staining. 

See the chart from Fair Isaac Company (FICO) below: FICO Score Pct of Population Default Probability 800 or more 13.00% 1.00% 750-799 27.00% 1.00% 700-749 18.00% 4.40% 650-699 15.00% 8.90% 600-649 12.00% 15.80% 550-599 8.00% 22.50% 500-549 5.00% 28.40% Less than 499 2.00% 41.00% Source: Fair Isaac CompanyAccording to this chart, investors should use corresponding vacancy + tenant-nonperformance factors of approximately 5% for Class A rentals, 10% for Class B and 20% for Class C.To address Class C payment challenges, many industry "experts" are now selling programs to newbie investors about how Section 8 tenants are the cure.

I would suggest a "post nuptial agreement", which states that what is yours before marriage will always be yours solely, and what is his pre-marriage is his solely.