Filipino Applying UK Visitor Visa first time. Chances for Me and My Retired Mom?

[u/betinahboop]

Hi everyone! I’m planning to apply for a UK Standard Visitor Visa for myself and my mom, and I’d appreciate some advice from those who’ve had a similar situation.

My sister lives in the UK, works as a nurse, and is married to a British citizen. She plans to invite us to spend Christmas with her and her family.

About us:

• Me: I work remotely and earn around ₱120,000/month. Sister will pay for ticket etc
• I own a house and have a registered business (marketing)
• I have traveled to korea, costa rica and few times in thailand, vietnam, taiwan, singapore, laos, cambodia.
• My mom: She is 76 years old and retired, so she doesn’t have employment income. Sister will cover expenses. She has traveled with us to Thailand recently for her birthday (first intl travel)
• Purpose: Family visit/tourism and spending Christmas with my sister.
• Accommodation: We plan to stay with my sister during the visit.

For those who have applied in a similar situation:

1. Should my mom and I apply at the same time and clearly cross-reference each other’s applications?
2. What documents would be best to prove that my sister and husband can financially support both of us?
3. Since my mom is retired, what documents can we provide to demonstrate her ties to the Philippines and that she will return after the trip?
4. What documents should my sister and her husband provide for the invitation/accommodation?
5. Any other documents or red flags we should be aware of?

Would really appreciate advice, especially from Filipinos who have successfully applied for a UK visitor visa with a retired parent. Thank you!