Needs about $50k in repairs as it's been vacant for years- new AC unit, new roof, siding/soffit repairs, new flooring, etc.

Prepping foundation and structure (beams, foundation, roof etc) between $25k and $50k (ball park) : contractor has to see plans to bid accurately.

I generally start by talking with my inspector then on his recommendation I reach out to the appropriate vendors (HVAC, roof, etc.).

My family has a mobile home that is in bad shape and has issues with mold and a caving floor (water leak) and roof (tree damage) in certain areas.

I've sold HUD Homes (as the buyer's agent) where the buyer's FHA appraiser required new floor coverings, new paint, roof inspections, a bathroom remodel, and a whole laundry list of repairs to meet the PCRs prior to closing. 

With a condo at least I won't have to worry about the roof and exterior maintenance. 

Details of the property: Property consists of a 29 unit storage unit made of cinder block and metal roofing and two single wide trailers.

On the north side where I work, I am much more concerned about loan limits and the self sufficiency test (only for 3-4 units)  I think in all my years working exclusively with 2-4 units only once was something triggered by the FHA inspection, and it was a flat roof the seller sealed off access to decades ago and hadn't been up there to even check on it in 20 years. 

Hard to say without seeing the property itself and knowing how old the roof, etc are, but you may want to consider allocating 10% to capex or maintenance/repairs instead of 5%.Hope this helps, best of luck and let me know how it goes if you do submit an offer!

It has new everything... plumbing, HVAC, metal roof, flooring, bathrooms, kitchens, paint, cedar beams, cedar shutters, vaulted ceilings, landscaping.... everything!