Literally, first come first serve, assuming you are granted a judgement, of course. 

@Shwetha Pindikuri,Assuming an FHA loan with a second mortgage can be tricky, but it’s definitely doable with the right lender.

If it gets rented the owner will update the listing with a new available date; if this moves by 30 days or more you can reasonably assume it was rented.

1-2 months in my marketb (Worcester MA) assuming they pass rental criteria, e.g. no evictions, makes 3x rental income, 650+ credit, good prior landlord references etc. 

Otherwise any reasonable person would assume that what is in the pictures is what comes with the house. 

I'm going to assume you're in the middle of a year lease.  

Great idea assuming you can get a loan on the property in the first place.

Offer them owner financing - sometimes you can even have them assume the mortgage (without triggering the due on sales clause) if it is serviced by a third party.

I assume they paid $50k give or take 5- years ago.

If you budget the negative cash flow over the course of the hold period and have reserves set aside to fill the gap, there is no problem (assuming your investment meets your target appreciation rates - I understand there is no guarantee there).