I am not an expert yet in funding/finance and saving/making the most money with these types of scenarios. 

From SBA email on 4/14:Dear Applicant,On March 29, 2020, following the passage of the CARES Act, the SBA provided small business owners and non-profits impacted by COVID-19 with the opportunity to obtain up to a $10,000 Advance on their Economic Injury Disaster Loan (EIDL).

This, of course, does not factor in economic recessions, fluctuations within the market, or a drastic change in crime rate, school systems, job growth/decay, or migration.

Just be sure that you have a decent cash reserve, and you're buying in an area with strong long term economics.

I think mini storage still has issues with over capacity, people need to be moving, not just losing jobs and staying put eviction free. analyze the deal on it's own merits, not some macro economic thesis. 

If you are unsure of assumptions to make, ask other experts. 

If its in Hillsboro and on MLS and has been for a while can pretty much guarantee that every small builder developer has looked at it. price might not be the issue it could be one of those parcels that is not economically feasible to develop at today's lot prices. the play maybe to buy it as a long term hold and let the market come to you in 10 to 15 years 

If it has passed, you have little to go on, but definitely does not hurt to stand your ground, and even hint towards the economic climate for wanting to back out of the deal.

Read CAA's letter opposing AB 828 here.This bill denies equal justice to housing providers by:Forcing landlords to reduce rents by 25% even if a tenant cannot demonstrate a hardship or need.Allowing judges and the court system to set rents and change the rental agreements already in place.Assuming every tenant is facing a hardship related to COVID-19 and must be compensated for this hardship.Protecting nuisance tenants as it does not require tenants to answer an unlawful detainer complaintMandating that rental property owners demonstrate an economic hardship to collect the contracted rent.AB 828 is an unfair attempt to allow the government and the courts to give reduced rent to all tenants even if they have face no economic hardship, and it provides safeguards for landlords.Contact your state legislator and ask him or her to VOTE NO on AB 828.

Unless you don't think you can sell in the current market, it's probably not a good idea hold this as a rental.To answer your other questions:Generally experts recommend a refi if you can drop your rate by .75-1% or more.Some banks do HELOCs on investment properties.