Try to stitch pictures together with something like webodm, then georefence them more precisely in ArcGis, using a local official map or internet maps that you have set as base layer in Arc GIS ?
I did some georeferencing of drone pictures with QGis, but it's mostly natural terrain with a few trails and almost no buildings, so it's impossible to get a good precision without special equipment. In my case it was obvious that the time spent to assemble lots of drone pictures (you need ~80% overlap) was not worth it. I got more detailed pictures than Google maps of course, but still too much deformations.
Depends a lot of the precision level you expect and what's on your property...