You're missing a lot.That 10% comes from the Goods and Services Act (of 79 if I recall and as amended) concerning pricing of services, and don't be asking where it says 10%!

It would also amend the Truth in Lending Act with respect to minimum standards for residential mortgage loans, to prohibit, in determining whether a residential mortgage loan is a qualified mortgage, from applying to loans originated by such a person certain guidelines and regulations relating to ratios of total monthly debt to monthly income.

Section 34.03(a), Tax Code, is amended to read asfollows: (a) The clerk of the court shall: (1) if the amount of excess proceeds is more than $25,before the 31st day after the date the excess proceeds are receivedby the clerk, send by certified mail, return receipt requested, awritten notice to the former owner of the property, at the formerowner's last known address according to the records of the court orany other source reasonably available to the court, that: (A) states the amount of the excess proceeds; (B) informs the former owner of that owner'srights to claim the excess proceeds under Section 34.04; and (C) includes a copy or the complete text of thissection and Section 34.04; [and] (2) regardless of the amount, keep the excess proceedspaid into court as provided by Section 34.02(d) [34.02(c)] for aperiod of two years after the date of the sale unless otherwiseordered by the court; and (3)regardless of the amount, send to the attorneygeneral notice of the deposit and amount of excess proceeds if theattorney general or a state agency represented by the attorneygeneral is named as an in rem defendant in the underlying suit forseizure of the property or foreclosure of a tax lien on theproperty.

(Adopted 1/07, Amended 1/12) Standard of Practice 15-3The obligation to refrain from making false or misleading statements about other real estate professionals, their businesses, and their business practices includes the duty to publish a clarification about or to remove statements made by others on electronic media the REALTOR® controls once the REALTOR® knows the statement is false or misleading.

The answer being, there's a draft amendment to the RRIO moving through the city council that would prevent landlords from evicting tenants if their property isn't registered. 

Is there a template agreement used in the industry which is amended accordingly?

Some of the better forces in Congress are working to raise the cap under Title III to $5M:To amend provisions in the securities laws relating to regulation crowdfunding to raise the dollar amount limit and to clarify certain requirements and exclusions for funding portals established by such ActLet's hope this happens.  

The potential issue is whether your lender will allow to close with you and your LLC on the contract as you can amend the contract to add your LLC but you will not be able to delete your name.

Also, I am concerned about the VRLTA which was amended a couple years ago to reduce the qualifying term from 10 properties to 3.  

Now...we will see with the new homes and HOAs what happens in the courts as the law changed for the HOAs that have amended.