protagonist

Hello, My mom (US citizen) is coming over to visit towards the end of November. She's getting older, so this may be her last trip to Thailand and would like to stay about 85 days. She plans on getting the 60 day tourist EVISA and then extending it for an additional 30 days. When applying for her tourist visa, will there be any issues if here return flight is 85 days from the date she arrives? My gut tells me it would be implied that she'll get the 30 day extension, hence why her return flight is beyond the initial 60 days, but this is Thailand and I'm never surprised at what could happen.

Thank you all for the replies. I think I'll go out to CW and confirm what my options are, if I have any.

My current extension expires on January 5th. I'd like to go in around December 5th to get my 30 day under consideration stamp and then get the year extension by the first week of January because I'll be travelling internationally from 1/15/23 to 3/10/23. Thank you advance for your help.