I’m looking to get some ductwork done and possibly upgrade the electrical panel at a multifamily rental property in 48213 Detroit.

By day I'm a data engineer at a large institutional asset manager, where I work with complex financial datasets professionally.

You can buy thease porperties for 90% off from the countys.I typically get 2 to 3 houses that turn into tax deeds and then I turn them into rentals.I have done very well over the years and I no longer work as an Electrical Engineer and my wife quit her job as a manager at a local hospotal because the rental inco.e.from tax lien sales has dwarfed out w2 job income.I also own a good many of these houses in a Self-directed ROTH IRA which makes all the rental income from these houses tax free for forever. 

I'm Sami, 22 years old, AI engineer living in Erie, PA.

The foundation work required will cost $22K.2 structural engineering companies have evaluated it already. 

The GC’s original bid didn’t account for structural repair, and the investor was staring down a costly change order.Here’s what we did:- Brought in a structural engineer the same week for quick specs.- Negotiated the repair scope with the GC to keep pricing tight.- Got approvals and work underway within 5 days, minimizing schedule slip. 

I'm an engineer, so my instinct is to treat this as an optimization problem, but there are a lot of factors.

Hard Costs (Construction): ~$1,990,000 (~78%)Framing / Rough Carpentry: $240,000Siding / Roofing / Exterior: ~$187,000Windows & Doors: ~$101,000Interior Finishes (drywall, paint, flooring, cabinets, countertops): ~$227,000MEP (Plumbing, Electrical, HVAC): ~$270,000Site Work & Utilities (excavation, storm, sewer, grading, paving): ~$330,000Landscaping & Exterior Improvements: $100,000General Contractor O&P: $68,066Contingency: $50,0002.

Hire a geotechnical engineer for borings/test pits.

In an audit, is a 'DIY' software or a full engineering-based study considered mandatory?