A few sentences is plenty to start — what you'd like mapped, roughly how big it is, and what records you already have. I'll follow up with questions and a quote.
Usually within a couple of business days. This is a side business alongside a full-time job, so evenings and weekends are normal turnaround.
Roughly how many parcels, sites, or miles of pipe/road; what records already exist (as-builts, sketches, spreadsheets); and any deadline you're working toward.