After entering into the seller financing deal, can I use the equity in the property to take out a heloc or home equity loan to cover the repairs and improvements beyond our finances?

A good first step is to make a budget and prioritize what you would like to improve.

I hear a lot about various parts of town that are undergoing gentrification.  This ward, that ward... Indy Heights, Acres Homes, Sunnyside, etc.  You do see some new small MF going up in some of these areas, but I rea...

Any improvement in saving money on rent is of course a net positive. 

Real estate is one of the most popular alternative investment types; in addition to rental properties, you can invest in commercial, residential, or raw and improved land with your IRA.It is a shame that your current company does not have a match policy for your contributions, but it is great that you are considering your options for savings now while you're young. 

If you can improve the property to make it worth more to the tenants that could help.

I will be able to improve the operations of the property and increase the income.

This is going to be an expensive improvement either way and I'm wondering what others may have done in the past who have done this.I've been advised that putting a grinder pump at each pad that connects to a central sewer line on the property that then connects the main line at the street is the best way to do this.

I think that as other competitors reopen their doors we will see terms improve (higher LTV for cash out, better rates, etc). 

Save up for repairs/mnx/vacancy/improvement ect?