Please look at this as a place to cautiously allocate capital.

Water was off at inspection so there might be a need to allocate some money in the rehab budget for any discovered issues.

Without it, I would need to change strategy/allocation. 

Landlords allocated only in Airbnb business are already feeling their business hurt.

If you have a DMSH election in place for the tax year and the total expenses allocable to the HVAC subsystem are more than $2,500, you would capitalize.If there is no DMSH election in place, you'd apply the betterment, adaptation, restoration (BAR) tests to make an expense vs capital expenditure determination.Either way, if the allocable costs are capitalized, my firm takes a partial asset disposition for the old system, which helps.

No cons to it, but do keep in mind that you need to allocate those funds as an owners investment or loan to entity once you do have it all set up.

First of all you'll get to take the portion allocated to your primary residence tax free (whether or not you're mom's counts is a question for your accountant). 

Projected cast neutral (we use conservative numbers, for example our maintenance/cap ex allocation was $500/month) at purchase (tougher to find now). 

How the haircut will be shared or allocated, if at all, will be told soon enough.Nonperforming paper is in a pricing limbo, obviously the moratorium is affecting that market.  

The IRS is well aware that every dollar allocated to building vs a land allocation adds tax deductions for the property owner.