How many times do you plan to come to Thai in a year and how long you plan to stay per entry. If you stay 28 days, go out and come back in again maybe 2 times, you might get a red flag and immigration will question you.
The most important is the contract on wear and tear and repair cost is on you or on the owner. And return the house in the same conditions as it is when you move in. Get everything recorded by photo and acknowledge by the owner.