You can get:-$10,000 per unit for mini-splits - $5,000 per unit for knob and tube removal - 75-100% off insulation- FREE light bulbs and light fixture- FREE thermostats- FREE Shower HeadsWe just got $20,000 for knob and tube removal at a 4 unit and $30,000 to replace this shared boiler at a 3 family we own.

@William Hochstedler  were I saw this model fail miserably for LA based investors was even though they are full doc.. the cash reserves that are there at the beginning.. investors get this irrational sense of security that their rents are going to come in like clock work that the homes are going to stay rented that their home will be taken care of like they would.. and the reserves end up getting spent on other things in their lives.. thereby wildling down their reserves.YOu have a bad run... you need 5k to fix up and re rent... house is vacant for 3 month during the process... and if you don't have the funds your PM is noting going to front it for you.. and down the tube you go. that's what I witnessed.. these were not speculators  these were people that thought their 100 to 200 a month positive were a given and could never change.. and they were woefully under capitalized. 

Materials cost around $50 total and I would go back in and put in the tubing connected to the refrigerator. 

There is NOTHING in that book which can help anyone become a real estate agent which isn't available on the forum or You Tube for free.

I do it mostly because the veteran real estate investors here know you never find anything but human feces and decades-old porn behind water heaters, and I think it's a great private joke for all of us about how weird this business is, especially seeing how the newbies react, all offended that anyone could possibly be dishonest here in the forums about finding rubberbanded and cellophane-wrapped stacks of used twenties in a hundred-year-old defunct crapshack in Yinzerburgh, of all places.And every year, right on the button, I get a bunch of people who insist they know exactly how I should invest my found money.

This could make your ADR less competitive, but if marketed correctly I'm betting that people might perceive more value, which keeps occupancy at least the same.I'm thinking of a model where you tell guests they have "add-ons included" like grocery delivery, prepared breakfast package, attraction tickets, inner tubes, etc.

Also check You Tube... bet you can find a video showing you how to do it!

I believe they stopped using knob and tube wiring sometime in the 40s.Roof - Of course in that amount of years, most likely the roof has been replaced at least a couple times, but this is also a big ticket items to look closely at.Plumbing - I think it was sometime in the 80s when PVC pipes were starting to be widely used.  

knob & tube?

It's atypical to find a building any more that is ALL knob and tube.