Also my favorite book is John Maxwell's Fail Forward is a great book.

My favorite aspect at BP is the knowledge through the savory podcasts. 

It comes in all flavors.  

Scott The Book on Flipping Houses, The Book on Estimating ReHab Costs http://www.biggerpockets.com/flippingbookBy the way - here are my favorite articles on Wholesaling: 9 Reasons You Couldn't Find A Buyer For Your Wholesale Deal Don't Start Wholesaling Until You Read This: Wholesale Advice from a Fix and Flipper How to Start Wholesaling: Getting Past The Education and Into the FieldThe Ultimate Beginners Guide to Wholesaling https://www.biggerpockets.com/renewsblog/2015/01/31/ultimate-beginners-guide-real-estate-wholesaling-2/Download BP’s newest book here some good due diligence in Chapter 10.

Where are your favorite sources for gathering data? 

One of my favorite ways to buy and make money right away is to do a joint venture with the seller on a minor rehab Where I live properties are expensive so let's use 800,000 as an example Let's say it  needed $80,000 in work in order to get the 800,000 sales price,  New kitchen new bathrooms So if you did a wholesaling offer it would be 70% of the 800,000 minus  the repairs of 80,000 70% of 800,000 is 560,000 , -80,000 in repairs is 480,000 Minor repairs are not a great wholesale deals, to be a great wholesale deal you need to deal with something that needs a huge amount of work, and has problems that are hard to forecast, i.e. exactly how much it will cost, like mold, or a fire, flood, some really nasty problemsLike rehabs on the other hand are very definitive in the costs like rehabs on the other hand are very definitive in the costs.Using the example above, what I do is I talk to the seller and show them that they will get not a huge amount of money for the light rehab on a Wholesaling offer For the sellers to make more money than 70% of ARV - repairs, I offer a "joint venture with the seller, or cooperative rehab, where we do it in stages" First I'm going to buy the property on a single payment note and give all their equity to them in about four months I will give them no money upfront, and I will use private lender money for the $80,000 in rehab. 

My favorite group in the area is the BWI Meetup. 

My favorite was they replaced the horizontal soil stacks in the basement with PVC, but didn't support the original cast iron ones that still were in place vertically...

One of my favorite strategies has been a "slow flip", where a distressed property is bought, renovated, rented out, then sold in a few years. 

Can some of you share your favorite hard money companies that will pay for rehab costs as well?