Visit Visa for Mother Help needed

[Kalu-UK]

Hi,

I've received my ILR recently, and it's been a while since I visited home country. So I'm trying to do visa for my mother to visit me here in the UK. She already came twice before in visit visa.

my question is

1. Can I apply for long term visa now for her (2Years) as she has been twice here before.

and in the Past visit visa applications my dad was the one sponsoring her trips, but this time I'm the one who has to sponsor her financially for this trip.

2. Therefore are her marriage certificate and a shop she has in her name (it's closed though; she doesn't earn from it) and a land registered in mother's name and dads going to be enough to show ties to home country?

3. And does she need to show how she financially lives back in home country?

Please any help would be appreciated

[Kalu-UK]

For strong ties to home country, We have prepared following list for, I just want to double check with in case she needs more if that isn't enough please advise me:

1. Land registry in her name
2. Marriage certificate
3. Shop in her name (its closed though she doesn't earn from it).
4. Document showing Dad gets pension
5. Birth certificates of my siblings.
6. Property in Dads name

they have recently used their savings so that is why they didn't provide their bank statements. Please any advise would be much appreciated