I understand this requirement is in the Texas Property Code, but I want to confirm it applies to student housing. 

What does your lease state about landscaping and yard upkeep requirements. 

My position would be to only allow the new resident if they meet your requirement but NEVER let the one moving out off of the lease until all of them are gone.

This requirement applies regardless of the property's purchase date, even if acquired before the implementation of this ordinance.

If you're worried about break-ins, then you need to secure it.We give our clients several options, including removing & storing the mechanicals to avoid theft.Also, check with your municipality to see if they have any requirements.

If this is off-market, I’d let the sellers/tenants know what you'll need access to in advance so they can move anything if required. 

There are ways to develop in non flood plain markets and not every home in florida requires flood insurance it only depends on flood maps. some areas don't have it.

The bill would require a public utility or special district to issue an above-described charge over a period of at least 10 years commencing on the date when the housing unit is first occupied, as specified.

You deposit cash into a savings account or make a down payment on a house.

Have you done any additional research into the requirements?