My question is if I end up needing to evict them, am I allowed to use the May 1st date as the end of their lease since I have a signed notice to vacate?

I'd review the existing contract carefully and make sure its something you will also agree to (contingencies, dates, etc). 

If you rent out your property for two years and then move back in for two years before selling it, you must prorate your exclusion because the exception to periods of non-qualifying use only applies to portions of the five-year use test period that occur after the last date that the property is used as a principal residence [26 U.S.C. § 121(b)(5)(C)(ii)(I)].

They can also call your employer to verify your information (start date, salary, etc...), not to mention they can check your credit for every debt you have.However, has anyone have any idea how they verify tax returns?

However, the majority of small multis in Indy are in rough areas and very dated.

An invoice gets sent out 7 days in advance of the rent due date or whatever number of days I chose and gives them a link to make the payment.  

If its the same dated filter I installed at move out I'll charge the tenant for a service of the unit due to the added strain on the system they caused by not following our lease agreement.With your plumbing situation I would include a lease provision that states tenants are responsible for maintaining all plumbing, excluding root intrusion and the like.

Are you planning to buy and hold or flip/1031 at a later date?

@Sarah Carter luckily my property manager is not allowing any cancellations but offering free reschedules to a later date.

Can you go straight to the owners of a foreclosure and make an offer before the auction date?