You can find ownership of property (assuming it is a LLC); and thus find name / address of manager/members of this LLC through government on-line database. 

Find the property online?

Online is great to a degree but it will never replace face-to-face.

By day I run an online marketing agency in Colorado.

hello rodney,ed reid here,there is 100% financing available for fix and flips ,the money is expensive,14.99 and 4 pts ,its only for 6 mo,here is a creative way you can accomplish your objective as it pertains to buy and hold,you could intially acguire properties using the hard money ,you would have to make sure that  your  rents are high enough to pay,you could then refinance the properties,i have lenders in my portfolio that has a 3 month seasoning requirement ,they wil lend you 70 to 75% of the appraised value,if you were able to buy properties and rehab them in such a way that your loan to value is 60%,you would be able to pull money out on the refinance,the rates are between5 and 7%,you may want to read my post financing your way to wealth ,the post will give you a case study of this technigue in action     

Me and my friend are currently coming up with the objectives and goals of our soon to be hopefully successful business.

D&B is total BS and you can live w/o it - - just like the BBB, it's a paid service for members and non-objective IMO.

Ok, I feel like this is a dumb questions but I am seeing a lot of different information online.

Online classifieds (Craigslist and Kijiji in Canada which is where I am)3.

Expensive if you are just starting.Specific - You have a house for sale online classified - craigslist, etc. - House for sale.