Update: How do I legally remove my adult daughter from my home

Location: Indiana

I apologize, I am not sure how to add an update to my original post.

First, I would like to thank everyone for your amazing advice. I did offer my daughter a “cash for keys agreement” that I would sign the title to our car she is driving over to her and give her $1000 cash and she declined it. She said to “feel free to move forward with the eviction process if you feel you can evict me with no lease and your disability”. I simply said ok. All conversations have been documented or recorded.
It is after hours and I need help desperately and hoping someone could answer a couple of questions.

1- I am not technically disabled though not sure if that matters. I had a back surgery last year and have been doing well since.

2- she is still driving our car and part of the “cash for keys” agreement was signing the car over to her upon leaving the property. Since she did not accept the offer, is it legal for me to retrieve the car from her even though she has a son if we are back in the home? What about if we stay in the home during the day and leave to sleep elsewhere?

I am just so confused, heart broken. I haven’t slept and know I won’t without answers.

I do plan to contact an attorney in the morning as I’m sure I will need one at this point anyway. Funds are tight with all we’ve already done financially and I cannot believe I am even faced with this.

Here is my original post:

Location: Indiana

I’m using an anonymous account as I’m sure my family knows my main.

My 22 F daughter was in a car accident on 4/30. She lost her vehicle and was unable to pay rent. We took her, her fiancé and 1 1/2 yr old son in to our home on 5/1 in order for them to get jobs and on their feet. My daughter and her fiancé both suffer from mental health issues and have been admitted in the past. We do what we can for our kids and I’m afraid it was a huge mistake.

As of 7/14 my husband and I left our home with our other two children out of fear. I’m not sure who she is anymore. She’s been lying so much and just gets so angry if she’s called out on anything. It all exploded with her fiancé and we asked him to leave but they do not have anywhere else to go and we cannot in good conscience have our very young grandson on the street. It has been literal hell living with them.

They do not even have a vehicle and are currently using ours for one of them to work.

They have given us some money to help with groceries but no rent or utilities. I have records of what they’ve given us as well as what we’ve loaned to them over the time they’ve lived with us.

How do I legally get them out? There isn’t anyone else willing to take them in.

I apologize for the long post. I’m wasn’t sure what info was needed for advice.

Edit to add: they have not even transferred their mail but not sure that makes a difference.

Thank you