I'll use this either to get a warrantable deed in my name, or for a buyer to get title insurance in their name. 

First off  you have a CRIME FREE /Drug Free addendum on each tenant that lives in your rental.If you notice suspicious activity or have reports of the same you give tenant notice of high traffic / volume of people to unit as notice to cure.. if this continues or you see or smell drugs you give notice of non-compliance and lease termination. yes you can ask police for advise.. but your main goal is to limit the calls police have to make to your property so you don't want to be listed as a nuisance property. but if the issues warrants it yes call the cops and if a neighboring unit is worried tell them to call the cops sometimes you have to have a record of police calls to verify the issue so you can write up infraction for eviction action..

Not sure if your situation warrants it but house hacking has been a great way to maximize your primary residence while aggressively saving each month! 

If they decline to share, that is a red flag which would warrant walking away or at a minimum substantially reducing the price instead and basing the offer on your own numbers validated by third parties.

In the interim tell them you will evict and serve a no trespass warrant on guests you suspect are the problem.

With that he can get a warrant for the guys, girlfriends' residence who lives in that town.

Definitely something to consider when looking in addition to understanding if it is warrantable or non-warrantable and limitations as such. 

This can help you determine if the terms are fair and protect your interests.While these red flags warrant caution, there's a chance the lender might be negotiating aggressively.While some private lender practices, like higher interest rates and faster closing times, are common, the extent of the changes you're experiencing warrants caution and further evaluation of your financial well-being.

Side note, if you will be financing a condo that allows short term rentals, you will most likely need to obtain non-warrantable condo financing, not conventional.

A market that is both expanding and stable might offer an ideal setting for real estate investment and rental property ownership.Even while flipping and repairing may be more common in your area, the BRRRR method could still be a good choice if the circumstances warrant it.