However, I also have ways for them to pay with cash, card, money order, cashiers check, and personal check.

I concur with @Patricia SteinerIt's essential to review your lease to check for any clauses related to pest control.

You should check if the bank feeds work with your bank otherwise, it's a deal breaker unless you don't mind manually doing the data entry.

There should have been change orders alerting you of the additional charges, which would have given you the opportunity to make budget decisions.Check your management contract and check all your conversations with the PMC.

Check with some of the people that commented here about the specific location.  

I’d recommend confirming the scope of work and checking with the Tennessee Board for Licensing Contractors to determine if a license is needed for your specific project.

Here are some great resources for you to check out: The Book on Estimating Rehab Costs https://www.biggerpockets.com/forums/12/topics/862964-wholes...Wholesaling Calculatorhttps://www.biggerpockets.com/blog/rookie-241?

They usually spend one day going through the property checking everything for a couple of hours and move forward.

I just looked at my calendar from this past summer, and there were zero check ins or check outs on Saturdays. 

I dont start a job without a cashier check and contract .