My questions is, what are the advantages or disadvantages to sharing this information to a potential buyer?

The benefits to this are:-less debt-increased cash flow (at the expense of liquidity)-interest savings on mortgageBeyond simple issues like opportunity costs, are there tangible disadvantages to paying off a rental house?

Lets say 550-600k.What are the advantages and disadvantages of each strategy?

The lower end houses are the original homes that were built in the 1970s (4+ bedrooms, nice size lot and wooded, great schools).My question is there any major advantage or disadvantage to investing in a place like this?

Cal and the Bay Area).Investing from afar has many disadvantages which can be expensive.  

If she's seriously interested then she'll think more about it and perhaps the advantages will start to overcome the disadvantages for her. 

Some advantages of both:LTR Advantages- Typically more stable income- Less maintenance- Easier to self manage, or cheaper to hire a managerLTR Disadvantages- Typically less cashflow- Potential for costly evictions- Typically lower asset class/lower appreciationSTR Advantages- Typically good STR's are in a higher asset class than LTR's- People typically think the wear and tear in a STR is more, which can be true, but having staff inside with a checklist can catch small problems before they turn into larger more expenses- More flexibility if you want to sell you do not need to try to sell pre-loaded, can sell furnished whenever you want etc- Potential for owner use- Higher cash flow, typically.STR Disadvantages- Management intensive, more expensive management- Income instability- Subject to seasonalityI have both but prefer STR's. 

The disadvantage of Wholesaling would be ...it's not long term (plus its a job) unless someone uses it as cash accumulation machine on the front end and use that cash to invest for long term Buy&Hold.Thoughts ?

As cash out refis would probably be a good option, it's a bit frustrating to think I put myself at a disadvantage by paying cash.

It also is a disadvantage in that I cannot be close to the properties I want to invest in, but it does give me that push to look everywhere in America instead of being locked into one place.