happens to us all the time, besides for accting we manage real estate on the side, its commercial real estate so its very different i know, but we usually call our attorney if a tenant stops paying rent and they serve them
do u have a signed lease with them??? honestly if ur in nyc i feel bad for u because landlords have the disadvantage….we have tenants living rent free for month until we could finally sue them, and thats if they didnt disappear in the interim…
id get a landlord/tenant lawyer if i were u, or call bais din, but my experience with bais din, they dont always take ur side, even if ur rite :)) good luck!!!