Are you wondering more about the financials of it or operations? 

Purchase Terms: Clearly outline the terms for your brother to purchase the property from you, including the timeline and price.To minimize the financial burden on your HELOC, refinance the property into a traditional mortgage as soon as possible.                                                                                           

Here's some basic copy & paste info that may help you make better investing decisions:----------------------------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

Real estate purchase using reasonable leverage, at todays interest rates, will build up equity through amortization.  

Prioritize your financial stability.

A financial advisor or real estate pro could help you map it all out more concretely.If I were in your shoes, I'd probably lean towards selling and reinvesting into some more diverse assets, or just more properties, but that's just me. 

We signed P&S agreements on 6 different properties totaling 20 units approximately 8 months ago and received a call today that the price we thought we were buying at has to-be increased on average 13% due to the increased cost of construction.

If you need financial help, ask under the "Finance, Tax, and Legal" forum.

When I really think about it though, I'm so grateful to not be managing my property day-to-day. 

I would agree if we were talking about financial statements, but as I understand it, we are talking about tax basis reports.For tax purposes, one can use a modified cash basis when filing.