The ultimate beginners guide is good place to start and the book on flipping houses is good for learning to estimate rehab costs. 

I agree with you that if the numbers ultimately work, then I am okay with the deal having a couple different fees on it however my recent experience, which is the reason for this post, is that these wholesale deals aren't getting to me and other cash buyers as actual "wholesale" by the time the multiple layer of fees are placed on them.In regards to your observance of "agents add your commission" and "they have very slim margins" - well, I have point out here that if (we) let the "they have very slim margins" excuse be okay, then the wholesalers are going to continue to take the lowest hanging fruit because they know that they can just feed it to their massive list of [agents] that will move the properties for them.

Your lien would survive the transfer to the daughter.

That will be my ultimate meal ticket.  

Finally, I am rehabbing a duplex that I own outright and ultimately want to get a loan at 75% of appraised value.In addition, my Debt to Income ratio comes in at 40% if I am allowed to count 75% of the rental income of my 2 current rentals and the future income of the duplex.

That is an ultimate time waster and if I submitted such an offer I would not get any return calls from a developer, other retail brokerage, or other retail PM company in the future for my other clients.

Would it be the sellers responsibility to pay off that mortgage before the ultimate end buyer takes deed of the property or is that something the buyer could take care of, perhaps 50/50 on both ends?

At this rate, even accounting for vacancy, cap-ex ($30/unit/month), and a 5% reserve for a property manager, it's still an 8.65% cap rate, and (depending on the financing terms I ultimately end up with) will cashflow between $3.5-$5K a month.I got this under contract because of a combination of their realtor being inexperienced (She only listed it on one MLS service, not even in the correct county), the owners being burnt out (one of the owners tragically died in an airplane accident), and sticking to my strike price.

I always shoot first and aim later with my offers.The lease does not survive the transfer of the deed unless you want it too (I believe).

As for your questions, I'm going to give you a few resources that will give you the information you need.In short, yes you can rent the other side to a section 8 tenant considering you ultimately decide who gets to be your tenant.