They have a system, team, and their own contracts, and also provide proof funds, even the EMD. 

The reality is the opposite - if it's not in writing then the PMC doesn't have to provide the service or can charge extra for it!

Another option is setting up a legitimate virtual office through companies that specialize in meeting Google’s requirements—just make sure they provide suite numbers and not P.O. boxes. 

Quote from @Raghavendra Jakkani: The tenant should provide proof of income that doesn't require detective work.

Selling a property that requires significant work can indeed be challenging, but there are several avenues you might consider exploring:Local Real Estate Agents: A local agent with experience in selling fixer-upper properties or historical homes in your area could provide valuable insights.

One is to build your own team of quality venders that will help you, most important may be the boots on the ground,  The other is to find a Turnkey provider that can be trusted.  

I would find a property that can provide you both.I used to aim for 8% cash on cash return + 4% appreciationGiven where the market is now, it is likely hard to find 8% cash-on cash and a 4% appreciation.I think 4% cash-on cash and 4% appreciation is do-able.

When going to the Tenant rights page it states I have to provide 90 days notice for an increase of rent.

Learn how to evaluate a market by either reading and listening to a lot of content or by providing some sort of value to someone who already has that knowledge.

I am reaching out to inquire about the subletting policy for corporate leasing opportunities I am interested in exploring the potential for flexible rental arrangements within your properties.Could you please provide me with information regarding your corporate leasing policy and whether it allows for subletting or alternative rental arrangements?