However, I found a bucket of concrete patch in the garage so I assume they must have done some patching.

They can ask for whatever they want, and you can always say "no" to anything that violates provisions of the lease and is compliant with the law.Given where you are, I would allow them to stay to the end of their lease, but non-renew them and then sell the property after they move out.

Assets in this category include:Swimming pool Pool equipmentConcrete pool deckLandscaping (sodding, underground sprinklers, planting beds)Concrete equipment padConcrete pavingThe remaining 69.54% ($122,389.33) of the total depreciable basis was classified as a 39-year class life.

I’d definitely recommend having a local attorney review your lease to ensure it’s solid and compliant with Ohio laws.

I'd call an excavator and see how much they'd charge to fill it in and bust up the concrete into the hole.   

Since I actually live here and rent out the lower unit (which isnt technically another 'unit', I’m 100% compliant — and I’m not competing with a flood of illegal or high-volume operators.

If I’m cold calling potential sellers and leaving simple voicemails with just my name and a “call me back” message and if they answer I am asking them about there home and "if they have considered selling it", am I compliant?

You can pull lists of absentee owners or tired landlords and send compliant, high-converting messages.

All work was done to remain CHAP compliant to secure a 10 year, fixed tax rate on the property.

Just make sure you screen tenants thoroughly, document everything, and stay compliant with Texas landlord-tenant laws.