Anthony,
I don't think there is a standard "one size fits all" way to get started. Are you looking to wholesale full time and turn this into a business, or do you just want to do a few deals a year for supplemental income?
I agree with David that wholesaling is a full-time job... but, it's not meant to be that way forever. Ideally, you scale up and create a business and systems that gradually require less and less of your direct involvement. I learned this from Michael Gerber in the E-Myth and from Kent Clothier at one of my local REIA meetings years ago. Kent told me to "Fire yourself as often as possible" which always stuck with me. Anyway, I'm getting off topic....back to your questions.
What is your monthly marketing budget for wholesaling (that you can commit to every single month for the next 12 months)?
What is your availability (hours per day or hours per week) to put into your business (realistically and with consistency)?
I agree that you should start going to your local REIA meeting ASAP.
Also, get on all the wholesaler's buyers lists in your market. This will give you good insight into the demand, target markets, etc. You may be able to reach out and partner with some of them as well. Just be sure to provide value from the start and be persistent. I get emails everyday from people who ask me to mentor them and they will graciously split the first deal with me when we close. Partnering and mentoring is a huge commitment and I personally don't invest in someone who doesn't demonstrate some sort of serious ambition (with action behind it) or provide some form of value from the start.
On that note, I don't think there is anything wrong with partnering with an investor or wholesaler. I had no money when I made my very first deal. In my case, I asked a well known wholesaler if I could advertise his property and found a buyer for him.
There are arguments on both sides on whether you should find buyers or deals first, and there is validity to both. I think once I hear back from you, I can provide some better insight.
Also, what is your target market?
Oh and no such thing as a rate to charge. In fact, don't think in terms of percentage at all - that's more like a commission. In wholesaling, you have equitable interest and you are either selling your rights to purchase the property or selling the property itself.
The price you charge depends on the value of the property relative to your purchase price. Remember, your end buyer needs to be able to make a profit so you want to get them the deal at approximately 70% of retail value.
For the sake of simplicity, let's say a house is worth $100k and needs no repairs, you would sell it to an end buyer at $70,000.
So if your purchase price is $68,000 you can mark it up $2,000 to sell for 70k. So your profit is $2,000.
If you get it under contract at $60k, you can mark it up by $10,000.
Heck, if you got it under contract at $10,000, you can mark it up and make $60,000. Hope that makes sense.
Look forward to hearing from you.