Seven letter words change one or two letter to make a new word

sainted

anoints

tontine

contain

contact

tactics

tickets

pickets

stripes

stipend

stipple

nipples

dimples

samples

pampers

Stamper

(The character in the two versions of House of Cards: http://2.bp.blogspot.com/-mreynPhwlvo/UctAGJZZlnI/AAAAAAAAcWg/VgB4Wri2l3w/s1600/xstampers.jpg)

perhaps

snapper

reshape

happens