Do i need to get county or city permission to build that simple detached room in my big backyard. 

I've called apartment management companies and they gave all the info they had (after being faxed the tenant's signed application giving permission to do background checks).

We did have an understanding that anything under $100 did not require my permission.

@Don - Before you make such a decision, consider this: If you ask the IRS for permission, and show evidence that only your IRA is the benefactor of the structure, you may be granted permission to have your IRA be the lender for your personal residence.

Perhaps you might be able to provide some type of proof of funds or some type or an escrow acct setup so that neither one of us can take money out of the account with out the others permission and have a neutral third party handle it.

But, I am ready to give myself permission to think & work outside the box (outside of what educational pedigree says I should be doing),  which is precisely why I am here.  

@Sam Leon - of course before terminating tenancy, a notice to quit the offending behavior would be required.Here are some ideas for you to consider:--------------------->% cut here %<---------------------Tenant desires to keep the following described pet in the dwelling they occupy under the Rental Agreement referred to above.Type of Animal: ________ Breed: ________Age: ________Gender: ________Name: ________Weight: ________Color / Markings: ________Tenant has completed a Pet Application and has been granted permission by Landlord to keep the pet specified and Tenant agrees to the following terms and conditions.1) Tenant agrees that Tenant is solely responsible for the maintenance of the above described pet, and agrees to keep the pet under control at all times.2) Tenant agrees to keep Tenant’s pet restrained when it is outside Tenant’s dwelling.3) Tenant agrees to adhere to local ordinances, including leash and licensing requirements.4) Tenant agrees not to leave Tenant’s pet unattended for unreasonable periods.5) Tenant agrees to clean up after Tenant’s pet and to dispose of the pet's waste properly and quickly.6) Tenant agrees not to leave food or water for Tenant’s pet or any other animal outside Tenant’s dwelling where it may attract other animals.7) Tenant agrees to keep Tenant’s pet from being unnecessarily noisy or aggressive and causing any annoyance or discomfort to others, and agrees to immediately remedy any complaints made through the Landlord / Manager / Owner upon Tenant being informed of these complaints.8) Tenant agrees to provide Tenant’s pet with an identification tag that the pet will wear at all times while on the premises, except when medical well-being of the pet indicates that it is necessary to leave it off of the pet.9) Tenant agrees not to breed or allow the pet to reproduce, but if this should occur, the pet’s offspring will be placed within twelve weeks of birth.10) Tenant agrees to immediately pay for any damage, loss, or expense caused by their pet, and in addition, they will add $ 0 (zero) to their security/cleaning deposit, which may be used for cleaning, repairs or delinquent rent when tenant vacate.

Just watch out for your sharing permissions.  

So one of our current tenant in a retail commercial is asking for permission to bring in the Gulf Coast Regional Blood Center and their mobile coach for a blood drive in our parking lot. 

We have had very minimal contact with my mother because of the rehab's rules for the first week there.I know these undeclared variables make it difficult, but I have a few questions.Under the situation that my mom gives them permission to attempt this, the numbers don't add up if I am seeing them correctly.