[MargaretR]

Social housing bungalows are hard to get, and to specify a location (near you) makes it even more likely that she never will get one.
The ground floor flats are harder to get than 1st floor flats, but 1st floor flats are worth considering if she can use grocery deliveries as I do.
At least I don't need to go up and down stairs to the bathroom, so only need to use the stairs a few times a week.

I recently websearched for flats and bungalows to let in the private sector.
Rents are near double that of social housing, but are worth consideration if she could qualify for Housing Benefit.
I found only one bungalow to let locally - on Livingstone Rd near the Stanley ground and that had 3 bedrooms - too big
There are several new build flats to let and some are ground floor.
Apart from Waterside(Puddleside) Accy (which has no ground floor but has lifts),
I found some on offer at Tinkerbrook Close Ossy, Roman Rd Blackamoor, and on the boundary between Rising Bridge and Haslingden.

Harwood Red recently posted that there will soon be some liason and swopping available between Twin Valley and Hyndburn Homes tenants and waiting lists..
Maybe you should register an interest at the Twin Valley BwithUs waiting list too.