stepsister-in-law

1- Stepsibling's wife.
2- Spouse's stepsister.

My stepsister-in-law is a good person.

great-granddaughter-in-law

Great-grandchild's wife.

My great-granddaughter-in-law is a good person.

stepfather-in-law

Spouse's stepfather.

My stepfather-in-law is a good person.

stepgrandnephew

1- Stepsibling's grandson.
2- Sibling's stepgrandson.

My stepgrandnephew is a good person.

half-uncle-in-law

1- Half-pibling's husband.
2- Spouse's half-uncle.

My half-uncle-in-law is a good person.

half-co-nephew-in-law

Spouse's half-nibling's husband.

My half-co-nephew-in-law is a good person.

grandnephew-in-law

1- Grandnibling's husband.
2- Spouse's grandnephew.

My grandnephew-in-law is a good person.