Yes you can but you will need someone in the area where the property is located to look after your interests.

Need to understand which turnkeys geographies have the best locations - is there somewhere with this analysis?

.- The creation of a new "note" would mean the satisfaction and release of the prior security instrument.  

I've asked many times for proof of financing or funds prior to showing properties if I do not know the individual and I have had rude people hang up on me.

-Are you in a field that makes sense for you to be in the setting where the MFH is located?

Also, if you have a brick and mortar location, I would highly recommend TLO (Transunion) skip tracing software.

However, there are steps they must take prior to reaching this stage of the game, including notifying the landlord/management IN WRITING (keeping a copy of this as your documentation) of the issue and giving the landlord a "reasonable" amount of time to address this repair issue.Keeping areas free of rodents/vermin IS one of the requirements. 

-While central AC may be important to some tenants, I think your main point of competition and what is likely more important to a potential renter are bigger things such as how many bedrooms, square footage, price, location, is it well maintained.

If they are only seeking a check every month and the largest amount possible based on the equity of this other property then sure it's a fine decision.A couple other thoughts though:With a smaller multi-family a vacancy is felt more financially than with a larger one, but the extent of that is influenced by the market's local metro and property location; andWhy not use some of the equity from the property to fund the purchase of the smaller one and then have two properties generate (probably) the same amount of income or more with debt service on both.  

Talk to a local RE attorney, but generally simply paying the taxes will not give you title....by "redeeming" it goes back to owners of record, prior to the action.