The systems they have can't be detected, cut or turned off, unless the perpetrators use bullets.  

Proof of income will only be the property’s current rental cash flow. 

This is based on the future reservation of my rental business (I guess I can pull a proof of income from Airbnb).

I would also recommend doing a pre move- in inspection with the tenant, as well as taking pictures of the property, that they will sign off on- so you are both on the same page of the initial property condition- so if there is damage when they move out, they can't say "that was there when I moved in" because you will have proof.

I wouldn't cheap out on this part and hire an attorney to help set up a bulletproof partnership. 

So they say “call this 1-800 number to get a refund,” which also doesn’t work….F%#* I finally bit the bullet and got a $30 portable air compressor, great for my frequent long road-trips.

Unfortunately, you will have to bite the bullet and deal with current interest rates should you decide to finance.  

Retain the Declaration of Service with a copy of the notice as proof of service of any notice served.Mailing requirements• Mailing alone is NEVER sufficient.

Any damage to window glass or entry doors is the sole responsibility of the Tenant.

I searched and found one HELOC lender that handles investment properties and below are some of the requirements.Typically a credit score of 720 or greater.A maximum loan-to-value ratio of 80%.Cash reserves covering six months or more and for rental properties, proof of long-term tenants.A debt-to-income ratio between 40% and 50%.There are higher interest rates on an investment HELOC than on a residence.1031 ExchangeAnother consideration is whether you want to keep the property.