All comments are valid, but a few things to consider here:First of all, I am not an attorney, so this is not a legal advice, only options based on my experience.-  Subject-to is not being accepted by any lender at the current rates. 

I do not have enough experience in tax.

Here is our experience:  There is considerable potential to manage a yield-bearing asset, but as @Alice V. mentioned, insurance costs have soared, to $1,250 per door.  

My experience is that condo associations typically charge so much in monthly HOA fees that any potential investment income gets eaten up by that fee.

Legally they can't be shopping for a quote for you but they can definitely share a few contacts, especially if their past clients had good experience with these specialists.

@Chris Marette, take this with a grain of salt, because the only times I appealed appraisals were before COVID.In my experience, if you stay with the same lender and you get a second appraisal, the best I got was an average of the two appraisals.  

Would you say the negotiating part is something learnt with experience?

Does anyone have experience with permitting with the city?

We also have had a longer runway to build out a product that is robust for a smooth experience while having a large enough support team around you to ensure you are quickly helped. 

I only deal with small multifamily buy and hold but looking to expand my experiences and knowledge.