There are several aspects of collateralization and disposal under the Uniform Commercial Code and the Fair Credit/Collections laws that apply to note buyers as your purchase of a note is not a personal investment transaction but a commercial business transaction.

It is unlawful for a person, in connection with the application for or procurement of a loan secured by real estate to: (1) Employ a device, scheme, or artifice to defraud; (2) Make an untrue statement of a material fact or to omit to state a material fact necessary in order to make the statement made, in the light of the circumstances under which it is made, not misleading; (3) Receive any portion of the purchase, sale, or loan proceeds, or any other consideration paid or generated in connection with a real estate closing that such person knew involved a violation of this section; or (4) Influence, through extortion or bribery, the development, reporting, result, or review of a real estate appraisal, except that this subsection does not prohibit a mortgage lender, mortgage broker, mortgage banker, real estate licensee, or other person from asking the appraiser to do one or more of the following: (a) Consider additional property information; (b) Provide further detail, substantiation, or explanation for the appraiser's value conclusion; or (c) Correct errors in the appraisal report in compliance with the Uniform Standards of Professional Appraisal Practice.2.

If I have to replace a few, I sort of feel like replacing all might be the way to go so there is uniformity. 

We have the Uniform Commercial Code, these generally cover dealings in personal property sales and leasing, business contracts, installment sales, banking, negotiable paper and notes, investment securities and secured transactions.

Maybe the nest smoke alarms as well and make it all uniform.

Another perk would be if a military member trashes your place you can contact their leadership at work because military members fall under the UCMJ (Uniform Code of Military Justice) on top of civilian laws and regulations.

It won't be uniform from year to year, but it's already happening.

It's legal to make up your own house rules as long as the rules are uniform and not related to any age, race, gender, religion  etc....

@Natasha Keck sounds like that is the uniform advice in this thread -- thanks for your comment!

Rip it all out because you want a uniform look.