I think the OP is talking about property tax not income tax ??

I’d suggest focusing on securing solid DSCR loans—like those from thelender.com, which lends up to 80% LTV, considers STR income, and operates as a direct lender.

You should be able to use departing residence income from the market rent when qualifying for a new primary purchase.

I don’t have a loan on the property and hold it cash, but, if I sell it would lend the profits as hard money and earn 10%+. 

Buy and holds is the key to true wealth with all the benefits of depreciation, appreciation, loan pay down by your tenants, leveraging the equity, cash-flow etc etc, but it often times isn't the active income that pays the bills until you build up a portfolio and even then there's the tenant management or managing your property managers.That's why I'm involved in all 3.

I am seeking recommendations on how to network with investors and find those who may be interested in coming on as a joint venture/partner.

Yes I often hear PPR and DLP in the same breath as they both seem to offer solid income with fairly low risk.

But with that one lender I found I am not lendable due to not having proof of income for the last two years.

Imagine making millions of dollars over the course of your career and then having to pay 30-50% every year to uncle sam instead of compounding that cash over time.This is exactly what real estate professionals have learned to mitigate.To reduce their taxable income, they just buy a building every year, do a cost seg, and use depreciation to reduce their tax liability dramatically.Their personal wealth snowball grows much larger and much faster than their W2 counterparts who give most of their money back to the government each year.Following this strategy as a real estate professional is one of best ways to end up with a much larger net worth at the end of your career.

So, if she bought the bitcoin for $1 million and is now using it to close on a $10 million property, that is a $9 million gain that needs to be accounted for in her income tax.