Talk to your agent and loan officer.Do you know if assumable loans have prepayment penalties or balloon payments when they transfer?

After analyzing the local Mercer County market I've noticed there are not that many MFH that are desirable meaning cash flow can occur, but appreciation, schools and good tenants will be at risk.

An example problem statement that I may have stated (and built the software for) in 2003, when I started investing full time: Build a tool for lead generation that collects county records from the county recorder's office (and property card data), finds the recent first mortgage defaults  from trustees websites or public filings for properties that are between 1000 and 1700 square feet, in a neighborhood of 90% like-kind properties with greater than 20 parcels, houses built after 1978, that can cash flow at current rates when fully leveraged. 

Purchase price: $290,000 Cash invested: $45,000 Short Term Rental (Airbnb) What made you interested in investing in this type of deal?

Current systems and tools:- Assistant to manage payments, invoices, ensure rents come in and chat with tenants for issues- Melio for vendor payments- Baselane for banking - separate accounts for each rental and deposit- Google sheets for Income and Expense reporting- Azibo for rent collection automation with late fee automations- Drive for my leases, SOPs, and documentations of tenants move in/move outGoals of improved system:  ensure I have a read out of how each property is preforming month over month, check on big expense items, ensure vendors get paid, mortgages get paid and rent is coming in, generate APY on float and savings for any big CapEx that comes up, and make my life easier come tax season.Is there a single software people use or what do you do for your business systems to optimize all of this?

Thinking of applying for HELO or Refinancing my personal home to get down payment for Rental Property.

If it's working as an LTR and you are cash flowing, I'd be willing to bet that the juice won't be worth the squeeze in converting them to STRs. 

It's REALLY hard for owners to cash flow paying a PM at all, much less 25%+.  

Just trying to get a better idea as to what the financing process was like for you experienced investors, that did not do all cash. 

There are lots of ways you could do this, but the execution is largely up to you.Most of the private lenders I have worked with were experienced real estate investors themselves with excess cash they wanted to put to work.