Tenant Uncooperative and will not pick calls

[Jeyo Punnakottil]

I am in a very weird situation. Here is the scenerio.I was on a flip project back in Dec 2019,Placed the ppty on market for sale in Feb 2020 and Covid hit .Because of the panic in market i wasnot able to sell the ppty and i had a 12% hard money interest only loan on it.So i decided to rent it to a potential tenant. It was a 1 yr lease and the tenants were very responsible .Towards the middle of the lease the indicated they want to buy the ppty but when the lease ended in 2021 june they asked for an extension for 1 more yr .They mentioned they are saving up for down payment and want to purchase at the end of current lease.They were a perfect couple ,No missed rents till now ,occasionally been late but paid the late fee. Current lease expires June 30 2022 ,i send them a no intention to renew lease contract in April 2022 to which they didnot respond.I asked them to secure financing and get into a written contract to which they say they are working with couple of lenders .They have not got into any written contract with me yet on purchasing the ppty .I put a lockbox on the ppty to schedule some showings .Tried reaching out to the tenant but tenant is not cooperative .He doesnt pick up the calls nor respond to my text.I am stuck ,i cannot show the ppty ,also he hasnot deposited this months rent.I went to the pptt other day and they had all their cars @ the drive way but didnot open the door or pick up my calls .I also noticed they have additonal dogs not mentioned in lease which is a lease violation.This ppty was a money pit ,has not cashflowed a penny as it was a flip project.I donot want to get into the eviction which will cost me anothe 6-10k.I am from Texas.I know most of you will say try Cash 4 keys but how can i do it if the tenant is playing a Cat and mouse game. How should i proceed?