Broker" means an individual, partnership, limited liability company, corporation, or registered limited liability partnership other than a real estate salesperson or leasing agent who for another and for compensation, or with the intention or expectation of receiving compensation, either directly or indirectly: (1) Sells, exchanges, purchases, rents, or leases real estate. (2) Offers to sell, exchange, purchase, rent, or lease real estate. (3) Negotiates, offers, attempts, or agrees to negotiate the sale, exchange, purchase, rental, or leasing of real estate. (4) Lists, offers, attempts, or agrees to list real estate for sale, lease, or exchange. (5) Buys, sells, offers to buy or sell, or otherwise deals in options on real estate or improvements thereon. (6) Supervises the collection, offer, attempt, or agreement to collect rent for the use of real estate. (7) Advertises or represents himself or herself as being engaged in the business of buying, selling, exchanging, renting, or leasing real estate. (8) Assists or directs in procuring or referring of prospects, intended to result in the sale, exchange, lease, or rental of real estate. (9) Assists or directs in the negotiation of any transaction intended to result in the sale, exchange, lease, or rental of real estate. (10) Opens real estate to the public for marketing purposes. (11) Sells, leases, or offers for sale or lease real estate at auction. 

My ultimate goal in getting into this is to "retire" by 45, and by "retire" I mean to be not reliant on a 9-5 in the corporate world for my income.

My issue is, Im kinda strapped for cash and i dont want to risk my personal credit score for a propery owned by my corporation.

Some states have much higher foreign corporation filing fees than others, for instance, California imposes a "franchise tax" of $800/yr for the purpose of doing business there.  

Even totally vacant I was making good money at my corporate job having to pay $490 a month out of pocket would not have been an issue at all.

Your 1040's need to be analyzed and do you go off schedule C, corporation or LLC for your self-employed job?

I'm looking to form a Series LLC, can I use the same name I have as a corporation?

There are several large corporate re-sellers that have done very well by concentrating on the rent to own market (on a National level.)  

I am educated as a CPA and for the last 5 years I have been doing management consulting with large multi-national corporations for a large consulting firm.

You can use any entity and partner through that entity, various Trusts, corporations, your tax positions matter.I suggest you begin studying general business entities, joint venture partnerships, general and limited, LLCs, etc. as each carries different liability assumptions, accounting and responsibilities of the parties.