I think receipts need to receive information on a regular basis and ensure the info adds value.  

Stay capitalized, don't over-leverage, ensure all of your properties are self-sufficient, shed any weak performers now, and make sure you're not overpaying for new assets.What's the HELOC concern?

I've been looking for an agreement that secures my wholesale fee with the end buyer and ensures the end buyer I will indeed transfer or sell my interest to him.

Beyond ensuring that they are all licensed and insured, I would ask them about some of the issues I suggested above and gauge their responses.

There are many buyers and not enough properties for sale.If your strategy is for your farm area is flipping and/or buy and hold you will need to ensure that your farm area supports that. 

@PJ McLaughlin well, that's a bummer.When a utility stays with the property, the Landlord should monitor it to ensure payment.

What should I do next to ensure this is a real possibility before moving forward? 

This may be your best choice for ensuring a certain level of design in your project.

Prohibits an RGB from setting longevity rentincreases.Part D: Repeals High Rent Deregulation, which allows units to be removedfrom rent regulation upon vacancy after the rent achieves a high rentthreshold; and Repeals High Income Deregulation provisions, which allowsunits to be removed from rent regulation if a tenant's income is$200,000 or more for two consecutive years.Part E: Sets the Preferential Rent as the base rent for the duration ofa tenancy, but preserves regulatory agreements that allow for legal rentincreases.Part F: Allows HCR or a court of competent jurisdiction to look back at6 years of rent history when determining rent overcharges, or a longerlook back period if it is reasonably necessary to make a determination.Eliminates the ability of an owner to escape punitive damages where theovercharges were willful.Part G: Enacts the "Statewide Tenant Protection Act of 2019" to allowany city, town or village to opt-in to ETPA and provides the appointmentof the members of the new RGBs to be done by the opting-in munici-palities.Part H: Amends the maximum collectable rent increase formula thatapplies to Rent Control units to set annual increase at either an aver-age of the last five years of RGB increases, or 7.5%, whichever is less;and prohibits Fuel Pass-Along charges for rent-controlled tenants.Part I: Reforms the personal use exclusion to limit the number of unitsan owner can take out of rent regulation, and requires the use to be animmediate and compelling necessity for use as a primary residence.Part J: Ensures that units rented by nonprofits to provide housing tohomeless or previously homeless people revert to rent regulation at theend of the use by the nonprofit, and that the previously homeless personor persons are treated as tenants for purposes of the law.Part K: Major Capital Improvement (MCI) & Individual Apartment Improve-ment (IAI) Reforms*Limits approvals to work for essential building functions and otherimprovements (e.g, heat, plumbing, windows, roofing); exclude mainte-nance.

Even then, we would charge unused fees to ensure that we collected enough income so the deal made sense.