spell check with humor.   

If it doesn't spell out any restrictions, then there aren't any. 

If my tenant is not using the proper means of notification that is spelled out in the lease, technically it's a violation of lease terms, correct?

That spells: Opportunity.

The two things you observe already spell trouble meaning you might have a long time to fill up that vacancy.

Then, after you've purchased, the tenants have less of a likelihood of of making a claim that the prior owner made some verbal agreement outside of what is spelled out in the lease documents. 

READ THE CONTRACT before you sign it , make sure it spells out exactly whats to be done , for how much and when it will be completed, etc  .  

Your IC agreement signed with the brokerage should spell out allowable activities etc.For more info go here:http://www.grec.state.ga.us/faq/faqadvertising.htmlHonestly this is why I do not have agents anymore at my brokerage.

There are a lot more terms to be spelled out than the amount of deposit.

Your property management agreement should spell out how the late fees are distributed and be to negotiate them when your agreement is up for renewal