If I have 12 feet of cast iron plumbing, would you replace it or line it?

Then facilitating design edits and renditions between HVAC, engineering, plumbing, back to HVAC, electrical, back to plumbing, engineering again, now hvac, engineering yet again..... yeah you get the picture.

If i use the brrrr method how long in to the loan should I refinance it

Can someone tell me all the methods there are for real estate investing and what are the beat ones and even personal methods that you use

I'm looking into a deal that is challenging me to do a bit more work than I have done before (moving the kitchens, changing floor plans, etc).Of course this sort of work will require permits from the city, gas/electric/plumbing inspections etc.

Also Worc multis tend to still have knob and tube electrical, horse hair walls and lead plumbing.

@Sarah BridgesThe 1% rule is really just a quick sorting method if you have allot of options. it's not an end all be all for REI.If I was relocating and needed to find a deal I would try to understand the market first.

Just purchased a SFR for our family while using the house hacking method.

If it happens again you could potentially send in a plumber to scope the plumbing system to see if they can locate the culprit. 

Personally I like the PnL method because it is cleaner and easier than 12-24 months of bank statements.