This suggests that they are going to hang on to the tradeline on the books and service it themselves.

This means you can raise their rents a reasonable amount and they will likely not move.

They were on a month to month so we could raise rent pretty quickly.  

We did pay the lawyer and servicing fees of around $1000.

Chances are extremely high that the Paul Davis, Servpro's, and Service Master's, etc. in your area do program work and are not independent.If I was in your position, I'd hire 2 independent firms who are certified by the IICRC in Fire & Smoke Restoration (FSRT certification) but ideally, have a Master Fire & Smoke Restoration certification.

I currently have a single business partner and we're looking to invest in a multi-family and house hack our investment to raise capital and credit for other deals.

Now for the good news: if you're simply acting as a rental collection service, or Contractor who handles repairs - you're fine without Licensing.

Did you encounter any opposition or criticism of their services from an attorney or accountant?

It was offered to a relative of mine as payment for services rendered, meaning we risk losing nothing here.

Owner said has long term tenant on one side of 9 years , building has had  great rental history.  600*2=1200 monthly1200*12= 14400 yearly taxes/insurance =2800 yearlyrepairs/maintenance 10%= 1440vacancy 10%=1440 14400-2800-1440-1440=8720 NOI20% down on 99000 @ 4% interest 30 years =19980 mortgage payment roughly 382 a month /382*12= 4584(NOI )8720 - (debt service )4584= 4136 monthly cash flowcash flow 4136 / (money invested) 19980 =20% ROIAm i missing anything here ?