My daughter (American citizen) is planning to come back here to Thailand to visit us for a few months.  She may end up being here as long as 6 months.  
She will be sending here passport off to the Thai Embassy in Wash.D.C. to request a 60 day tourist visa that can be extended for another 30 days here in Thailand.  
Two questions.  
1.  Does she have to have a "return to America" airline ticket in order to receive that visa?
2.  Is there a different (or better) visa that she should be requesting?  
Thanks.
TLDR : Answer Summary
The user inquires whether their daughter, an American citizen, needs a return airline ticket to obtain a 60-day tourist visa extendable for 30 days when visiting Thailand for up to 6 months. Responses indicate that proof of onward travel is generally required, not necessarily a return ticket. Some suggest the Multiple Entry Tourist Visa (METV) might be a better choice for a 6-month stay, although it requires showing financial proof and employment status.
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