Entrance:
1/15 -> Once you entered to the entrance, go to the left with a table of candlesticks.

Library:
2/15 -> On the second table in the library.

3/15 -> Next to the east entrance door.

Kitchen:
4/15 -> Far side of the kitchen.

5/15 -> Next to the west entrance door.

Dining Room:
6/15 -> First dining table in the dining room.

7/15 -> On the top of the square side table in-between of the two dining tables.

8/15 -> Second dining table in the dining room.

East Side Bedroom:
9/15 -> On the table at far side of the east bedroom.
10/15 -> On the chair in the small room next to the previous note.
East side bathroom:
11/15 -> Top of the second last toilet

West side bathroom:
12/15 -> Immediate right once you entered the west bathroom.

West side bedroom:
13/15 -> On the chair near the west bathroom.

14/15 -> The first bedroom next to the two previous notes.

15/15 -> On the table at far side of the west bedroom.