In particular, Long bought at least 11 properties in his sister’s name and seven properties in his mother’s name without the consent of either relative.

ASSIGNMENT: Buyer shall not assign all or any part of Buyer's interest in this Agreement without first having obtained the separate written consent of Seller to a specified assignee.

Twenty-four hours is presumed to be a reasonable notice in the absence of evidence to the contrary.(9) Promptly commence an action under Chapter 1923. of the Revised Code, after complying with division (C) of section 5321.17 of the Revised Code, to remove a tenant from particular residential premises, if the tenant fails to vacate the premises within three days after the giving of the notice required by that division and if the landlord has actual knowledge of or has reasonable cause to believe that the tenant, any person in the tenant's household, or any person on the premises with the consent of the tenant previously has or presently is engaged in a violation as described in division (A)(6)(a)(i) of section 1923.02 of the Revised Code, whether or not the tenant or other person has been charged with, has pleaded guilty to or been convicted of, or has been determined to be a delinquent child for an act that, if committed by an adult, would be a violation as described in that division.

Or they moved somebody additional into the unit without landlord's consent.

Several factors are to have a personal guaranty, consent to judgment clause, state of jurisdiction...Definitely speak to an attorney.

In my case, I can't buy either of these notes, then change the terms of the contract without the consent of the other party. 

My lease clearly states “only pet living on the premise is: Shih tzu”, and “ any changes in pet occupancy will require written consent of landlord”.

Here are few:No need for a custodian (save $$ on transaction and asset based fees)Checkbook control - you don't need to ask custodian consent to make the investment, simply write the checkRoth sub-account - in essence you can have two accounts in one: regular pre-tax as well as Roth after taxHigh contribution limits up to $56,500 per year, this is nearly 10 times more than an IRA.

If there's a current and bonafide lease agreement in force then the landlord and tenant must comply with the lease terms, I don't think you can insert language or "put in the lease" without a mutual consent to an addendum or amendment.

You could potentially argue you were a property management company, but still without their consent or any legal agreement, that argument would be void.4.