If I purchase a tax certificate and the property isn't vacant, but has renters, am I entitled to collect the renters monthly payments from the house or apartment units until the owner redeems? 

If you want to start from scratch, you will have to go through a lot of hoops (permits, licenses, certifications, etc...).

.* There are no prepayment penalties.See attachment for our company's brochure and entity certificate for verification. 

I’d suggest following Michael’s advice along with verifying with whichever municipality would be issuing the rental certificate for any restrictions. 

Look up Estoppel Certificate.

So anything you see like that around town is also a non-conforming, un-permitted feature.I've seen projects that permitted and built everything to code, then apparently added access after Certificate of Occupancy is issued (exterior stairs, attic access, etc).  

Hi,I opened an LLC several months ago, but misspelled the name when i opened it.When i wanted to start doing business with this LLC, i realized that the LLC was registered with the wrong name in the city, state and IRS records.After filing a certificate of amendment with my state, the name of the LLC was adjusted and the city/state records have been updated with the new and correct name.I would like to know where i can find out if the IRS records were updated aswell following the certificate of amendment, and do i need to file any specific forms with the IRS in order to change the name in their records?

Any specific certifications?

They were able to list/show the home and more importantly, the PM was able to handle the insane amount of things my township flagged to renew my certificate of occupancy (thanks NJ...)

With the internet auction it is not rare to see hundreds of bidders per property.There are still some niche where you can get some good deals.In my case in Florida I only buy tax certificates (liens) and get some good returns (18% in general but sometimes way more if I’m lucky).