Oklahoma City does not seem to far from you.LLC vs CorporationIt is generally advised not to hold properties that tend to appreciate(such as real estate) within a corporation.However, there are potential tax saving strategies of doing flipping or wholesaling within an S-corp to save on self-employment taxes.Below are some links of other BP members who requested for a CPA in Oklahoma CIty.

I’m only running the business part time (15 to 20 hrs a week) and it’s already bringing in about 3k a month profit (with everything subtracted from revenue besides taxes). 

I never in past have to pay taxes,always got little return...

Taxes for immediate payback, and then in a year or two when the rent increases, you will be in the money.

I've done both adjusting and property management and the closest they get to each other is in claims management and calculating loss of rents.  

The final document you will need is a Certificate of Occupancy or a Certified Inspection[11].Texas or taxes:The City of Austin's Hotel Occupancy Tax rate is 11 percent, comprised of a 9 percent occupancy tax and an additional 2 percent venue project tax.

But essentially, you just need to ensure that you are not claiming to represent the seller and disclose on your contract that you hold an active license. 

Realtor fees, income tax, correct arv, correct costs.

The holder of the note makes no real difference; in Jane's case, it might be more advantageous to her to hold the note than sell outright depending on how she can absorb the sale from a tax perspective; in your case you don't have enough income to do a conventional loan so getting a seller carry can give you more properties.

TAX TIME !!