Inns' rhymes with:
akins, askins, beens, begin's, begins, berlin's, binns, bins, binz, chinn's, finn's, finns, fins, grins, gwinn's, hinz, hinze, inn's, inns, ins, kin's, lins, linz, lynn's, mcginnes, mihn's, minns, pins, prins, prinz, quinn's, sins, skin's, skins, skins', spins, thinnes, thins, tins, twins, twins', violins, win's, wins, wynn's, wynns, zins
Inns' sounds like:
iams, iannamico, iannucci, iannuzzi, iiams, image, images, imasco, imax, imax', imax's, imes, imig, immanence, immense, imminence, immunex, immunize, immunizes, imus, in's, inaez, inaki, inc, inc., inc.'s, inca, incas, incase, ince, inch, inches, inches', incise, inco, inco's, ines, inez, ing, inga, inge, ingo, inhouse, iniga, iniguez, iniki, iniss, ink, inks, inky, inmac, inman's, inmex, inn's, innes, inness, inning, innings, innis, inniss, innocuous, inns, ins, inscho, insco, inscoe, insko, iomega, ionic, ionics, ionics's, ionize, ions, iowans, iwanicki, iwanski, iwinski