Just to give you an Idea on some numbers , I am doing a 2100 sq ft house , class A neighborhood ,  clean out , removing some walls to go open floor plan , minor electric , some mid level replumbing , full custom paint , new kitchen , new bathrooms ( 2.5 ) , new windows , refinish hardwood upstairs , Vinyl plank downstairs . 

If your shell is back to the studs, just getting the rough in phase; insulation mechanical, duct work, electrical, plumbing passed inspection, with the holding costs that will put you over 100k.  

We have a lot of 100 year old buildings in Milwaukee, most with no electric fan and often with a glassblock window in the shower - and even with that I do not see much mold.

Hi all, There's a 125 year old MF property that I have my eye on, but it needs upgrades (roofing, electrical is very old, mechanical is ad hoc, asbestos mitigation, etc.).

.- Replace electrical outlets, switches, plates with new white.- Tile throughout (bathroom will get different tile.- Install new windows throughout (18), install new trim and replace rotted or damaged framing as necessary.- Install new white vent covers throughout.- Install (brushed nickel?)

All new electrical, plumbing, flooring, kitchen, bathroom, walls.

Be sure that the plumbing and electrical are all good before replacing walls or ceilings or you could have serious trouble and expenses down the line.Regarding finances: I have used QuickBooks Desktop version (saves a lot of money but does not get the constant updates) for five years.

I have access to my employers subs for plumbing, electrical, and we have some finish guys for rock/trim.   

No turnover, no replacing the roof, the hot water heater, the broken AC, no vacancy, no tenant hassles, etc… pest control, electrical issues, plumbing issues, septic issues, no renovations from wear and tear (you get the picture).  

Updated the appliances, updated the windows, updated the electrical, replaced the HVAC, reframed the lower bedroom utility/laundry closet to open into the hallway instead of the bedroom.