Your lease should prevent her from running a business in the home. 

Yes, STR are allowed in this building and there doesn't seem to be anything in the HOA rules to prevent my idea.)Thanks in advance.

With a new roof and no other preventative maintenance for large items on your calendar, you could get by with much less but the mandatory reserve requirements from lenders had been 6- 9 months in California on owner-occupied properties, and some lenders allow your non Cash ownership of Stocks or a 401 k to be considered as part of your liquid reserve requirement.

How can I prevent the chance of me losing my information to fake people claiming to be a private lender and how can I make this work?

My question is how do I go about properly putting the guest out and can I ban/prevent this guest from coming to the property since the length of her stay was a violation of the lease? 

I know if nothing related to COVID That prevents a landlord from raising the rent.

Fannie / Freddie & FHA all allow this time frame, however some lenders do have overlays that will prevent them from allowing the 1 year rule.

Sometimes zoning can prevent use as a dwelling, other times no problem.

How do I enforce appointment times and prevent tenants getting harassed?

They will deal with the clogged toilet calls, etc...