I then Issued a 3 day Notice to Quit last week, no response!

I would give them a 3 day pay or quit notice.

No matter the strategy so you can be ready in case anything happens where you lose your active income or a tenant moves out without notice whatever the case may be.

This is akin to making one extra monthly payment on your mortgage each year that you may not even notice, which helps you pay your balance down even faster.

Furthermore, I noticed that any initial email I sent out to a sponsor was responded with them encouraging me to set up a time to discuss the business with them.

Give the PM a written notice of termination 30 days in advance.

Collin, Amazing progress and you are an role model to everyone for grit and persistence. 

Is it better to be persistent and reach out once a day, or does that make me look desperate and encourage the seller to ask for even more?

Have you noticed on BP thread after thread about assorted syndications suspending distributions, going belly up, taking measures to prevent going belly up? 

One of the reasons I asked the question is that it seems strange to me that a property management wouldn’t take anything upfront if they inherited a house that wasn’t ready for rent .Our property management also does the cleaning ( deep clean over 4 days was $1000 but they had to deal with some nasty pet hair , fleas etc)and that included some cover up paint etc .One lesson learned here is every contract with owner : property management varied greatly it seems from what is needed .But moving forward - I feel that $500 a month on a $2100 a month property is too high once it’s rented - unless endless problems persist of course ..thanks for your insight!