Realtors listing is a great way to market it, Facebook is also an underutilized method.

I would like to do the BRRRR method.

I have investors that I set up loans with private money that only use this method because of the speed.

We are active in Spain and personally bit by bit getting into Portugal as well.Quick question: is refinancing possible in Portugal (BRRRR method)?

Now let's look at Quality based on grade of wood.There are primarily two different terminologies and methods to grade Quality. 

Payment methods, tax collection etc.

You can also check online resources like BiggerPockets or Roofstock, which offer general CapEx guidelines based on property type and age.These methods should help you perform a solid preliminary analysis.

Here are a couple of methods of pipe replacement that I am aware of you might be interested in looking at.https://www.youtube.com/watch?

Check out this BP article about how they come into play with the BRRRR method.

@Elizabeth RossFor properties under 100k you will likely need to use the BRRR method as its difficult to get a 30Y loan on a properties valued under 100k.