Payments that you make normally fall into one of 3 buckets100% of the payment can be factored in somewhere on the returnPartial payment can be factored somewhere on the return0% of the payment can be factored in somewhere on the returnHouse-hacking also has considerable tax implications in the event that you want to sell this property.You can potentially defer a portion or all of the gain on the investment property with 1031 exclusion.You can potentially exclude a portion or all of the gain on the personal residence with section 121 exclusion

Not a direct answer but I would ask what is normal for that area? 

How do I go about charging for a pet fee and how much do people normally go for?

My out-of-state agent tells me this is normal for the neighborhood but I see iron staining all over the tubs and toilet and can't imaging a tenant being okay with this.  

Normally recommendations like these are frowned upon in the open forums but feel free to PM me if you would like and we can chat further.

Out of 400 units in the building currently, 9 1-bedroom units are listed and available for rent ($1595-$1850) and 4 studio units for rent ($1425-$1600).Right now more higher-end luxury buildings in the are are renting for $2K - $2.4K I'm thinking post-pandemic when rents return back to normal, could it jump up to $2K maybe? 

Assume the investor is providing 100% of the equity requirement and I am guaranteeing an acceptable annual return, is normal to ask for 50% title on the property or is there a generally acceptable equity split if I do not provide any monetary equity?

Normally, we would postpone the closing until the Seller can get the tenant out. 

Also, with so many people from the mainland moving over, higher prices are normal for a lot of tenants.

With that you have to give your state mandated notice which normally means - another 30 days of living there.