Letters of credit come in handy as well. 

You might try getting a credit from the seller to use as you wish ( have to get lender approval ) because they might just want to pay down the amount of loan amount to start which does little to nothing for you.Some sellers will give you the credit and walk away and others will want it escrowed and a release each month based on if the tenants are paying or not.Being mom and pop tenants you need to know if the seller has received rent abatement notice letters yet.

Apartment receiving heat for poorly worded letter. 

Purchase price: $9,250,000 104-unit multifamily, mix of 1, 2, & 3 bed, completing 60 unit renovations over next 3 years What made you interested in investing in this type of deal?

I would get a letter from your attorney.

Most and i would say 99% of true HELOC's give the lender the unilateral authority to stop any further advances on the line and to call it.. would be rare they actually froze it and foreclosed.. but freezing it sure this happened en Mass during the GFC.. and the main issue is you dont know it until you try to access it.. the letter saying its frozen shows up about 30 days later  :( 

When I get owners who are interested, or if I get Return To Sender letters, I want to sell those lists to interested parties. 

A POF is usually a copy of your bank statement....not usually a letter. 

I mixed up a 50/50 water and bleach solution and added Dawn to make it cling to the walls . ( I use semi gloss paint you will see why )  A big commercial fan and a radio .

And the border stones were locked in with stone dust and cement 3 to 1 mix dry packed and rolled with a vibratory drum roller . ( packs better than a little plate tamper)  Cracks filled with a 2 to 1 mic of wash sand and hydraulic cement dry packed .