What are the requirements for obtaining a 90-day Non-O visa to stay with a Thai family, and how do they differ from the marriage visa extension?

I am looking at the Thai Embassy Los Angeles web site... I am confused.. I thought that one only needed the funds in the bank two months prior to the 90 day visa expires.

please explain.. maybe I am not looking at the correct info ..

would like to obtain the 90 day visa and then apply for the marriage visa after 60 days..

here is what is on the Thai Embassy Los Angeles web site.

Required documents to upload in the system (Large and clear JPEG or PDF format) to stay with Thai family residing in Thailand (more than 60 days):

1. Passport Biodata Page or Travel Document (Must be valid within 6 months from travel date)

2. Photograph of the applicant, taken within the past six months

3. Document indicating current location (driving license, bank statement, or proof of stay)

4. Recent bank statement showing the applicant's name and ending balance of no less than $15,000 or proof of monthly income of not less than $1,500/month) along with the current bank statement showing incoming income

5. Personal details of a family in Thailand, e.g. valid Thai ID card or Thai Passport

6. Proof of relationship to a family in Thailand (immediate family only), e.g. A copy of marriage certificate / birth certificate / certificate of adoption

if this is not the visa I want.. please to direct me to the correct visa.

Thank you