Complete Multi-Family Interior remodel: strategy Question

[Dale Degagne]

I have a gorgeous 12 unit under contract.

It has turn of the century wood craftsmanship and the envelope is in good shape.

Unfortunately the interior mechanics of the building are at or well past their end of life.

Plumbing: Cast and lead drainage, mainly copper feed lines

Electrical: all piped and grounded but mainly surface mounted and running off of the old glass fuse breakers and under serviced. 75 wire so potentially can't add even add any new 90 rated fixtures (ie can't change lights)

From a financial perspective the numbers will work beautifully if I can turn over some of the tenants and upgrade the systems when I do. But I think it would be more effective to just do it all at once due to the severe disruption to the whole building.

I can renovict for extremely large projects like this if I have to but would rather do a cash for keys scenario. I don't know how that would work if I wanted to get the whole building though.

Anyone have any advice or experience doing multiple c4k or renovictions?