You may want to get in touch with some realtors in whichever markets you are interested in that specialize in off market deals (pocket listings) and who are also "investor friendly realtors," not just ones that want to off a garbage property to you.

I started the tax lien foreclosure and the owner redeemed with about 2 weeks to go.You have to look at each county individually to see;Do they sell OTC liens/certificatesIf they do sell OTC, do they sell OTC all year long or only in a special OTC auctionIn Florida, counties that offer OTC certificates, you can earn the full annual 18% (1.5% per month).

There are attorneys who specialize in this area of law in NYC.

Using your first property as collateral could help reduce the cash you need upfront, but it’s essential to weigh the risks and it's not really recommended specially if this will be your first.I recommend focusing on building reserves or seeking partnerships to fund flips.

To expand, @Ben Whittington, Dennis Doss and Anthony Geraci’s firms can prepare a customized set of loan docs for you in any state. 

Just trying to prepare for the worst.

@Toby FellowsYou are correct, you need to ‘hang’ your license under a broker in order to practice real estate, and most brokerages require you to become a member of the National Association of Realtors as well.While you are preparing and taking your courses, contact several brokers and interview them to find out who might be a good fit.

Yes, that's why  want to be prepared and knowledgable before applying.

and for the life of me I cant see what these guys do that a very good RE broker who specializes in those assets could not do for you and far better frankly. 

I usually talk to a dozen banks when preparing to make an offer or just get a property under contract. 8 unit is just south of 20 by the fairgrounds.