Closed rental today! Seller renting. Wants 24 hr notice to visit

[Debra A.]

Today we should be elated. We managed to buy a house in northern California for nearly 1 mill and it needs a ton of work. The seller is a friend of a friend and we did a private sale and shared the real estate agent.  From the start there were signs of control issues, when she refused to pay the sellers realtor fees.  To get the the house we split the fees.  We made other concessions that will wind up costing us $$.  She will rent through September and has been informed of a impending remodel.  We've had numerous inspections and site visits with contractors and she is quite aware that when we take possession, that the remodeling will begin in the in law and a large out building but not in the unit she's in until she moves.  This arrangement is another concession. She got everything she wanted and we complied to get the house. 

Our agent notified her that we'd like to come by to get keys and change her locks to ours on the out buildings--after all, the house is ours as of today.  She unloaded on the agent saying we had to give her 24 hours notice to come on the property.  This is true about entering her space but we now own the house and property.  This house has been her home for 30 years and it represents many not so happy memories for her and I'm thinking that the sale brought up a lot of emotional stuff for her.  Please offer your wisdom and ideas on successfully managing a landlord/tenant relationship with this person for the next 4 months.  We should feel proud, optimistic and not locked out!

Thanks Bigger Pockets!