Tying the sewer lines into the old main stack can be a challenge if the house has cast iron pipes.

I am not someone (ironically) who thinks your only investing should be in "real estate" or that people should automatically own a home.

I do find it ironic that the numbers you provided above for San Diego that you indicated “isn’t going to cut it” was a 1.2% monthly rent to value ratio.  

Nobody can safely and legitimately sell tradelines better and quicker than these guys, nobody pays more to do it, and nobody has a 100% commission referral program for each card uploaded by any/all new sellers you refer - without limit.I'm extremely experienced in this and although I've been through a couple growing pains with GFS they've ironed out nearly every issue and went fully transparent with their payment schedule and their system to prove that they will not manipulate pricing based on individual customers.

Ironically, you witnessed that asking your professionals did not produce a clear answer, and even asking specialized tax professionals on this forum resulted in a bit of a disagreement. 

We know the basics of PEX plumbing, bought some tools, and know how to tie into cast iron plumbing.

@Jaycee Greene, i realize the appraisers should be making a differential but on small multifamily 2-4 family in Worcester, MA in particular, if the roof is 25 years old or 1 year old they dont make an allowance, if the electrical is from 1930 or from 2020 they don't make an allowance, if the plumbing is cast iron with copper, vs PVC and PEX they don't account for that. 

Also, not sure how the sewer lines are structure, but I also look for the main stack and whether it's cast iron or PVC - I usually get the sewer line videoed to make sure.

Start off with your specific financial objectivesThen move into which asset class is the most interestingThen figure out timeline and your proposed market After you have that preliminary info ironed out start to look here for assistance.

The black fan is right on- it ties together your black wrought iron railing.