In addition to organized bookkeeping, Buildium provided other benefits that accounting only softwares do not, such as lease renewals with esignatures, maintenance requests, a tenant portal for rent collection, 1099 preparation for vendors. 

Historically speaking, STRs will at least allow you to cash flow right out of the gate and when you add in the appreciation and principal paydown and tax benefits, the returns are 40% a year or better on most of these deals. 

I'd recommend adding those as they'll adjust your returns.  

Look into a DSCR loan that uses the property's cashflow instead of your personal income to qualify.This is a tax free move as you are using debt plus you still benefit from all the benefits of still owning the first house.Your future self will thank you for stacking houses this way as your cashflow and equity will build up over time creating long-term wealth.To Your Success!

I noticed you are a lender who operates in my state as well, if you have some time available I think I would greatly benefit from learning what I can be doing to increase my chances of securing a loan and what lenders look for in potential clients. 

I included in the proposal the benefits for the landlords, such as no worries for vacancies, a 5% profit share on top of the rental rate and the provision of a professional cleaning team for their property.

I understand that at a minimum, I HAVE to register in CA since that's where the property is, but the lawyer is indicating that NV's a friendlier environment for Landlords so I should register in NV and just "do business" in CA.My questions are:  Is there a material benefit to registering in NV and then also CA? 

However, rolling the proceeds into your second home won’t provide any tax benefits like a 1031 exchange, as that only applies to investment properties.

Or, if possible, move into a different property, hold onto this property for another 2 years or so, (your circumstances have now changed) and you'd like to sell your investment property, 1031 all proceeds into a "like-kind" property and benefit from the 1031 tax deferral. 

This market is extremely tight and you might have to adjust your math to make things worse.