deposit to hold money

[Richard Plack]

 I am a new landlord and have a situation Im not sure how to handle .  I live in Ohio.  A lady from Texas was moving to the area, we showed her daughter and friend our property using facetime.  She wanted to lease it.  We ran a background check and everything came back great.  She wanted to pay us $900 for the first month rent and as a deposit to hold.  She sent money via pay pal.  I sent her an electronic lease to sign and took the house off the market.  I had two other qualified applicants I turned down.  Her daughter called us tonight and told us her mom decided to go with another home, which we she has the right to do as I didnt get a signed lease.  Do I need to return her full payment?  I know I made some mistakes with this transaction but I want to do the right thing by her and us. Lookimg for advice.  Thanks