There are certain parts of the budget that are earmarked for investing and paying bills. 

spoke with a  small builder that has a project  earmarked  to make close to  170K   ...but due to delays  for multiple  diff reasons  - he  recently sold the  property and made less than  20K  ( he  worked on this for  over a year )!

Would the capital gains from selling an investment property held in a particular LLC be eligible for a 1031 exchange fund if it is applied to a down payment on a commercial development owned by same LLC that broke ground within the time limits dictated by this IRS programFor instance, if an office building is sold for 2M resulting in a 750k capital gain, could that 750k be earmarked and applied to help finance a 5M new commercial mixed-use development that is in planning stages by same LLC and set to break ground within the coming years.

I personally have a lot of interest in the Bronx especially anything near Orchard beach as It is ear marked for re development  here is ling to some info about what they are looking to do in the area...https://www.amny.com/real-estate/orchard-beach-pavilion-1.25619117

Especially as I often work a few different investments through a single Series LLC, it helps my earmark the expenses for each separate series so that if there is ever a lawsuit I can provide documentation that each of those series has been functioning separately from one another, even if they are all using the same bank account.Each person has their own system.

There is no advantage whatsoever to earmarking a security deposit.For pets, we charge $25/month per pet.

She is definitely earmarking the rest of the rent meant for you to another bill, knowing you'll accept your full rental payment late.

In Chicago Suburbs for our operation it simply goes into the owners account and is earmarked as such but never any interest is paid for commercial or residential.

lol But I did already have the 30k of my own funds earmarked ... but it is nice to not have to transfer the last 15k over.

So, in that regard I think you are on the right track by targeting a demographic with a steady job with funds earmarked for rent payments.