Long term tenant side only bathroom, has a seized up shower head, only take baths I'm guessin, cause there isn't even a shower curtain.  

3 bedroom and 1.5 bathroom in B grade working class neighborhood. 

I'm okay at estimating bathrooms kitchens, and roof but I've never done anything with wood frame floors needing to be replaced.  

With the exception of her amazing rockscaping, I would say that we're both at similar skill levels in departments such as renovating and repairing kitchens, bathrooms, cabinets, doors, floors, windows, wood stoves, etc.Steve: I agree with you 100%.

People come to me all the time with questions about remodeling their kitchen and or bathroom.

As this is a drive thru coffee house so there's no bathroom there?

The only difference is that these homes have a 2nd bathroom. 

Lower needs new tub surround"So get estimates on a new Furnace, and new Bathrooms, updating the electrical

I would expect those combined to be closer to $600 monthly, because you will likely have a lower class of tenants and you will be dealing with 4 separate units, which means 4 separate bathrooms, kitchens, etc to maintain.I cannot get much more specific though, given that I do not know anything about the layout of the building or the specifics of the neighborhood.

Home Specs: 3/1.75 1500 sq ft, 5400 sq feet lotList price: $375,000Purchase price: $340,000ARV:$440,000 (comps verified with homes sold in 1/4 mile radius in last 30 days, not to mention a few pending listing at $460ish)Rehab: $20,000-Scope of work: -Paint int and ext-finish original hardwood floors 1200 sq ft-new windows- install 1 ext double door -landscape back and front yards -bath1: new shower pan/tile, vanity, bathroom flooring, light fixture -bath2: epoxy coat tub and add tile border, new vanity, new flooring, light fixture -3 new mirrored closet doors-1 water heater-kitchen tile-retouch white cabinets and add modern hardware-5 int doors-door hardware, hinges, electric plate coversHard Money Loan Terms: $300,000 with 3.5 points and 12% interest$40,000 cash for purchase$20,000 cash for rehab$10,500 cash for hard $ points$9,000 holding for 3 months (1.5 month rehab, 1.5 month market and sale)The largest concern is the shower pan in the bathroom caused flooding and destroyed a portion of the bathroom subfloor, I made sure to mention to my inspector that I need him to verify that there are no signs of mold under the home.