Barry Morrow, the lodger questioned by Merseyside Police over the death Angela Holgate and Alice Huyton, has been charged with their murder
The bodies of Holgate, 54, and her 75-year-old mother were found at Holgate's home near Southport last Saturday. Both had been strangled.
Morrow, 51, is due to appear in court on Monday. He was arrested on Thursday after a Europe-wide search.
A police spokesman said: "Merseyside Police have today charged Barry Morrow, 51, of Fairhaven Road, Southport, with the murders of Angela Holgate and Alice Huyton.
"He has been remanded in custody to appear at South Sefton Magistrates Court on Monday."
Holgate's brother - Huyton's son - said: "Both Alice and Angela were very popular and led active lives and had many friends. They meant so much in the eyes of different family members and held the roles of: great-grandmother, grandmother, mother, wife, aunty, sister and sister-in-law. The sad loss has had a severe impact on the whole family."