Seems a bit high on the exp ratio near 43% but we do pay a premium for our solid cleaning lady, she also stocks supplies, runs errands and other duties for no "extra" charge.

Just an extra couple of clicks to do.

Essentially tweaking in PL I imagine is the same, adjusting for the supply side where the demand side is usually adjusted automatically by the software.

Usually quarterly.  

I'm sure people would pay extra for some kind of "meal prep/private chef" type package in their living situation.You've got the right idea thought, but don't be afraid to reach...nothing wrong with dropping your price after a couple weeks if you don't get any interest.  

Estimating is both art & science and FWIW most professional estimators rarely get it spot on, usually operating within a Delta.There's tons of estimating books, software etc.

If it’s a must-have, it might be worth the extra time in your schedule.

Usually b/c if the deal is so amazing, the money is rarely the issue, and b/c those people that do have the money thus get to cherry pick for the 1 in 10 or 1 in 15 that is the MOST amazing of "amazing deals." 

Possibly using mortgage/home equity loan on one unit we own to buy an extra one.3.

Looks like an extra 2 months to get money in at 10% instead of 7%.