The garage is old with a sliding barn door that does not seal the inside from the cold weather.  

I recently bought myself a duplex and noticed that most tenants are turning away because of  one exit door is in the one bedroom.

If she doesn't want to move out, what should I do? Or

I'm in Arkansas (next door) and know the area pretty well but not your market specifically. 

Thanks again and to answer one more question from above, no I haven't read white coat investor but I have read millionaire next door, the rich dad series, and a few others.

I have security cameras (mostly so I can prove if a guest violates the no-pets rule or throws a party, etc) and wifi door locks.  

Daniel,Absolutely, depending where an investor is in their real estate journey (how many doors they have), it may or may not make sense to hire a p/t CFO.

Use other people's money with as little down payment as possible to acquire doors.  

But when he said he is gonna vacate the home he had defaults on rent. we have 2 months rent as security deposit , we told them we could deduct that amount on rent only if the house is returned in good condition... when we inspected, the house was in very pathetic state...they didn't inform us about the dog and it wasn't on the lease either but we found that they had a dog and 2 cats...The dog caused much damage to 2 of the doors.

New handles on all doors. 4.