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We propose high-resolution imaging of the OH 1667 MHz main line and 1 GHz continuum of the highest redshift known OH megamaser comma which was recently discovered in early observations for the LADUMA (Looking At the Distant Universe with the MeerKAT Array) survey. As is typical in the local universe comma the host system is an ultraluminous infrared galaxy the OH emission may be tracing an outflow comma but the system.s possible merger status and AGN strength are uncertain. In conjunction with two orbits of HST time comma our VLA observations will allow us to localize the OH emission relative to the host galaxy.s optical and radio structures comma which may include multiple nuclei and-or radio jets to determine the host galaxy.s stellar morphology and its possible evolution into a post-merger elliptical and to place stronger constraints on the OH brightness temperature comma thereby informing models of physical conditions in the masing gas. The resulting analysis will place the use of spectral line surveys like LADUMA for studying the cosmic history of gas-rich mergers on a much firmer foundation.