My Parent Has Become Aggressive

Immediate need for advice! My parent suffering from dementia has progressed to the point of needing care at a facility full time. My stepparent is doing all possible to provide my parent with the best possible care. My parent has been to three different facilities in the last six months. My parent left the first facility when my stepparent determined the care being provided was inadequate. At the second facility, my parent was being violent with other patients and caregivers and the second facility told my stepparent that my parent was no longer welcome there and sent my parent home with NO notice! My stepparent, under advice of their PCP, took my parent to All Saints hospital in Fort Worth and would not leave until they admitted my parent for testing. Turns out my parent had a bad UTI and we were told this can lead to violent and unreasonable behavior. My stepparent found a third facility to take my parent to stay. My parent has been there for less than two months and the facility seems to be building a case to kick my parent out as well, but I cannot blame them due to a report today that my parent was violent with another patient in the facility just this afternoon. So I am turning to this community for advice:

We live in NE Tarrant County. My parent has already been to Keller Oaks, Emerald Hills, and Westpark. Are there any facilities you can recommend? My stepparent says her clinicals report the bad behavior, so the stepparent is having a difficult time find a facility that will accept my parent. Also, my parent is a Medicaid patient, so this increases the challenge. Can you improve a patient's clinicals if they stop the offending behavior?

Do we need to ask the doctor to sedate my parent to decrease my parent's likelihood of more violence? How do you get a dementia patient to understand they are misbehaving when you can't reason with them and they forget what you tell them 30 seconds after you say it??

What medications would you recommend for this situation? When I see my parent, my parent behaves just fine for me, but if a staff member tries to assist my parent (for example: helping my parent sit properly in the wheelchair so my parent does not fall out), my parent becomes belligerent and agitated and extremely disrespectful (definitely not my parent's normal behavior prior to dementia). I ask my parent if they are feeling sad, angry, anxious, etc. but my parent just shrugs and says, "no, not really".

Please help - I am new to this forum and definitely new to helping my stepparent navigate this world we have been thrust into.