Vacation coming up - What can I write up if I look at Properties?

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I am in the process of purchasing my first rental property (under contract) in Louisiana and my wife and I are on the hunt for more in various locations. With that being said, we are taking a family trip to South Padre Island and are interested in looking at properties when we are there. We will be driving there and staying at a VRBO condo with our two small kids. Since we will likely be viewing several properties, at least one property per day while there, what can we deduct as an expense for tax purposes? I suspect most mileage can be deducted (to and from South Padre and mileage to and from each property), some meals when discussing the properties, but not 100% on the lodging since our kids will be with us. Any guidance is appreciated!