And at that point you might as well have started from scratch with an architect.

You may need an Architect to perform a feasibility study if the codes are complicated.

Questions: If I decide to make an offer, approximately how much would it cost me to bring in an architect and provide me with a temp CO?

Here's a list of what we ask for in our LOIs and contracts:Operating financial statements for the property, including income statements, expense statements, capital expenditures, for the last two years of operation and year-to-date financial statements for 2020.Prior two (2) years tax returns and addendums for the Property.Current tenant leases, tenant correspondence, tenant credit information, tenant security deposit register, and delinquency report.Onsite staff payroll records to include salary, bonuses, payroll taxes, benefits, etc.Monthly owner statements and rent rolls for the past 12 months.Contracts, service agreements, and files pertaining to the property.List of maintenance all maintenance requests (complete and incomplete) for the last two years of operations.Real estate tax billings and assessments and other correspondence pertaining to real estate tax calculations at the property.Copy of Insurance Policy and claims documentation (loss runs).List of capital improvements and any and all necessary related documentation and warranties.All existing warranties and guarantees from architects, contractors, and material and equipment suppliers, all of which would be assigned to Purchase.Any existing environmental Phase I/II reports, engineering reports, soil, mold, radon, asbestos, hazardous substance, termite, or other tests, studies, or reports.Any existing appraisals.Itemized inventory of all personal property.Twelve (12) months of utility, water and sewer bills.Twelve (12) months of bank statements.Verification of additional income from operations including but not limited to application, pet, late, and other fees, etc.Copies of title policies, title reports, land surveys, site plans, deeds, or any architectural plans for the property.History of or pending litigation against the Property, its owners, or its managers related to the Property or the operation thereof.Such additional information, documentation, or access as Purchaser shall require

- A Contractor- A Real Estate Agent- An Architect - Other?

@Eric SeoI have successfully submitted revisions and have heard from my architect you can submit for building permits

I'd push this past your reviewer and up to the director...I'd ask your architect if they are familiar with who that person is and can make that contact.

You will have to hire an architect and apply for an after the fact permit.

Preliminary research on viability of project for this lot We have had 2 conversations with the architect who developed a spec site plan of the lot for the seller. 

If I were a young architect I would try to purchase a primary residence that needs work.