no key for entry of vacant house

[Jay Cam]

Hello bp family. I am a new investor in KC and I have been thinking about this for quite a bit today. Here it is.......

I plan to buy some vacant properties in my area and then wholesale or flat out sell them off. If the owner is out of town, I guess I will not be able to go inside the property until I get it under contract. What if the owner is local and does not have the key. I don't want to put any money into these properties for repairs or even to change the locks because I won't be keeping them. I don't expect these homes to be in very good condition.  Would this be a problem for a potential buyer of mine if they cannot go inside the property????  I don't want to sound like a rookie, but I am a rookie. I have been reading a lot of posts and viewing videos but I have not seen an answer to this question/concern. I do know that if a house is in good condition, I need to go inside before making a deal and closing. Please advise.   Thank you.

-Jay